Remove old repair steps that aren't executed anymore

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

11 files changed, 0 insertions, 743 deletions

diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index a1b0650b03a..f29b9334fca 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -803,14 +803,7 @@ return array(
     'OC\\Repair\\CleanTags' => $baseDir . '/lib/private/Repair/CleanTags.php',
     'OC\\Repair\\Collation' => $baseDir . '/lib/private/Repair/Collation.php',
     'OC\\Repair\\MoveUpdaterStepFile' => $baseDir . '/lib/private/Repair/MoveUpdaterStepFile.php',
-    'OC\\Repair\\NC11\\CleanPreviews' => $baseDir . '/lib/private/Repair/NC11/CleanPreviews.php',
-    'OC\\Repair\\NC11\\CleanPreviewsBackgroundJob' => $baseDir . '/lib/private/Repair/NC11/CleanPreviewsBackgroundJob.php',
     'OC\\Repair\\NC11\\FixMountStorages' => $baseDir . '/lib/private/Repair/NC11/FixMountStorages.php',
-    'OC\\Repair\\NC11\\MoveAvatars' => $baseDir . '/lib/private/Repair/NC11/MoveAvatars.php',
-    'OC\\Repair\\NC11\\MoveAvatarsBackgroundJob' => $baseDir . '/lib/private/Repair/NC11/MoveAvatarsBackgroundJob.php',
-    'OC\\Repair\\NC12\\InstallCoreBundle' => $baseDir . '/lib/private/Repair/NC12/InstallCoreBundle.php',
-    'OC\\Repair\\NC12\\RepairIdentityProofKeyFolders' => $baseDir . '/lib/private/Repair/NC12/RepairIdentityProofKeyFolders.php',
-    'OC\\Repair\\NC12\\UpdateLanguageCodes' => $baseDir . '/lib/private/Repair/NC12/UpdateLanguageCodes.php',
     'OC\\Repair\\NC13\\AddLogRotateJob' => $baseDir . '/lib/private/Repair/NC13/AddLogRotateJob.php',
     'OC\\Repair\\NC13\\RepairInvalidPaths' => $baseDir . '/lib/private/Repair/NC13/RepairInvalidPaths.php',
     'OC\\Repair\\OldGroupMembershipShares' => $baseDir . '/lib/private/Repair/OldGroupMembershipShares.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 1bdcd38fcfb..def8abd8c55 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -833,14 +833,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Repair\\CleanTags' => __DIR__ . '/../../..' . '/lib/private/Repair/CleanTags.php',
         'OC\\Repair\\Collation' => __DIR__ . '/../../..' . '/lib/private/Repair/Collation.php',
         'OC\\Repair\\MoveUpdaterStepFile' => __DIR__ . '/../../..' . '/lib/private/Repair/MoveUpdaterStepFile.php',
-        'OC\\Repair\\NC11\\CleanPreviews' => __DIR__ . '/../../..' . '/lib/private/Repair/NC11/CleanPreviews.php',
-        'OC\\Repair\\NC11\\CleanPreviewsBackgroundJob' => __DIR__ . '/../../..' . '/lib/private/Repair/NC11/CleanPreviewsBackgroundJob.php',
         'OC\\Repair\\NC11\\FixMountStorages' => __DIR__ . '/../../..' . '/lib/private/Repair/NC11/FixMountStorages.php',
-        'OC\\Repair\\NC11\\MoveAvatars' => __DIR__ . '/../../..' . '/lib/private/Repair/NC11/MoveAvatars.php',
-        'OC\\Repair\\NC11\\MoveAvatarsBackgroundJob' => __DIR__ . '/../../..' . '/lib/private/Repair/NC11/MoveAvatarsBackgroundJob.php',
-        'OC\\Repair\\NC12\\InstallCoreBundle' => __DIR__ . '/../../..' . '/lib/private/Repair/NC12/InstallCoreBundle.php',
-        'OC\\Repair\\NC12\\RepairIdentityProofKeyFolders' => __DIR__ . '/../../..' . '/lib/private/Repair/NC12/RepairIdentityProofKeyFolders.php',
-        'OC\\Repair\\NC12\\UpdateLanguageCodes' => __DIR__ . '/../../..' . '/lib/private/Repair/NC12/UpdateLanguageCodes.php',
         'OC\\Repair\\NC13\\AddLogRotateJob' => __DIR__ . '/../../..' . '/lib/private/Repair/NC13/AddLogRotateJob.php',
         'OC\\Repair\\NC13\\RepairInvalidPaths' => __DIR__ . '/../../..' . '/lib/private/Repair/NC13/RepairInvalidPaths.php',
         'OC\\Repair\\OldGroupMembershipShares' => __DIR__ . '/../../..' . '/lib/private/Repair/OldGroupMembershipShares.php',
diff --git a/lib/private/Repair.php b/lib/private/Repair.php
index 8562465aad3..2b671662f99 100644
--- a/lib/private/Repair.php
+++ b/lib/private/Repair.php
@@ -35,12 +35,7 @@ use OC\Files\AppData\Factory;
 use OC\Repair\CleanTags;
 use OC\Repair\Collation;
 use OC\Repair\MoveUpdaterStepFile;
-use OC\Repair\NC11\CleanPreviews;
 use OC\Repair\NC11\FixMountStorages;
-use OC\Repair\NC11\MoveAvatars;
-use OC\Repair\NC12\InstallCoreBundle;
-use OC\Repair\NC12\UpdateLanguageCodes;
-use OC\Repair\NC12\RepairIdentityProofKeyFolders;
 use OC\Repair\NC13\AddLogRotateJob;
 use OC\Repair\OldGroupMembershipShares;
 use OC\Repair\Owncloud\DropAccountTermsTable;
@@ -133,24 +128,8 @@ class Repair implements IOutput{
 			new RepairInvalidShares(\OC::$server->getConfig(), \OC::$server->getDatabaseConnection()),
 			new RemoveRootShares(\OC::$server->getDatabaseConnection(), \OC::$server->getUserManager(), \OC::$server->getLazyRootFolder()),
 			new MoveUpdaterStepFile(\OC::$server->getConfig()),
-			new MoveAvatars(
-				\OC::$server->getJobList(),
-				\OC::$server->getConfig()
-			),
-			new CleanPreviews(
-				\OC::$server->getJobList(),
-				\OC::$server->getUserManager(),
-				\OC::$server->getConfig()
-			),
 			new FixMountStorages(\OC::$server->getDatabaseConnection()),
-			new UpdateLanguageCodes(\OC::$server->getDatabaseConnection(), \OC::$server->getConfig()),
-			new InstallCoreBundle(
-				\OC::$server->query(BundleFetcher::class),
-				\OC::$server->getConfig(),
-				\OC::$server->query(Installer::class)
-			),
 			new RepairInvalidPaths(\OC::$server->getDatabaseConnection(), \OC::$server->getConfig()),
-			new RepairIdentityProofKeyFolders(\OC::$server->getConfig(), \OC::$server->query(Factory::class), \OC::$server->getRootFolder()),
 			new AddLogRotateJob(\OC::$server->getJobList()),
 		];
 	}
diff --git a/lib/private/Repair/NC11/CleanPreviews.php b/lib/private/Repair/NC11/CleanPreviews.php
deleted file mode 100644
index 94f5d19b795..00000000000
--- a/lib/private/Repair/NC11/CleanPreviews.php
+++ /dev/null
@@ -1,73 +0,0 @@
-<?php
-/**
- * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-namespace OC\Repair\NC11;
-
-use OCP\BackgroundJob\IJobList;
-use OCP\IConfig;
-use OCP\IUser;
-use OCP\IUserManager;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
-
-class CleanPreviews implements IRepairStep {
-
-	/** @var IJobList */
-	private $jobList;
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/** @var IConfig */
-	private $config;
-
-	/**
-	 * MoveAvatars constructor.
-	 *
-	 * @param IJobList $jobList
-	 * @param IUserManager $userManager
-	 * @param IConfig $config
-	 */
-	public function __construct(IJobList $jobList,
-								IUserManager $userManager,
-								IConfig $config) {
-		$this->jobList = $jobList;
-		$this->userManager = $userManager;
-		$this->config = $config;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getName() {
-		return 'Add preview cleanup background jobs';
-	}
-
-	public function run(IOutput $output) {
-		if (!$this->config->getAppValue('core', 'previewsCleanedUp', false)) {
-			$this->userManager->callForSeenUsers(function (IUser $user) {
-				$this->jobList->add(CleanPreviewsBackgroundJob::class, ['uid' => $user->getUID()]);
-			});
-			$this->config->setAppValue('core', 'previewsCleanedUp', 1);
-		}
-	}
-}
diff --git a/lib/private/Repair/NC11/CleanPreviewsBackgroundJob.php b/lib/private/Repair/NC11/CleanPreviewsBackgroundJob.php
deleted file mode 100644
index e713f4dc63a..00000000000
--- a/lib/private/Repair/NC11/CleanPreviewsBackgroundJob.php
+++ /dev/null
@@ -1,132 +0,0 @@
-<?php
-/**
- * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-namespace OC\Repair\NC11;
-
-use OC\BackgroundJob\QueuedJob;
-use OCP\AppFramework\Utility\ITimeFactory;
-use OCP\BackgroundJob\IJobList;
-use OCP\Files\Folder;
-use OCP\Files\IRootFolder;
-use OCP\Files\NotFoundException;
-use OCP\Files\NotPermittedException;
-use OCP\ILogger;
-use OCP\IUserManager;
-
-class CleanPreviewsBackgroundJob extends QueuedJob {
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/** @var ILogger */
-	private $logger;
-
-	/** @var IJobList */
-	private $jobList;
-
-	/** @var ITimeFactory */
-	private $timeFactory;
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/**
-	 * CleanPreviewsBackgroundJob constructor.
-	 *
-	 * @param IRootFolder $rootFolder
-	 * @param ILogger $logger
-	 * @param IJobList $jobList
-	 * @param ITimeFactory $timeFactory
-	 * @param IUserManager $userManager
-	 */
-	public function __construct(IRootFolder $rootFolder,
-								ILogger $logger,
-								IJobList $jobList,
-								ITimeFactory $timeFactory,
-								IUserManager $userManager) {
-		$this->rootFolder = $rootFolder;
-		$this->logger = $logger;
-		$this->jobList = $jobList;
-		$this->timeFactory = $timeFactory;
-		$this->userManager = $userManager;
-	}
-
-	public function run($arguments) {
-		$uid = $arguments['uid'];
-		if (!$this->userManager->userExists($uid)) {
-			$this->logger->info('User no longer exists, skip user ' . $uid);
-			return;
-		}
-		$this->logger->info('Started preview cleanup for ' . $uid);
-		$empty = $this->cleanupPreviews($uid);
-
-		if (!$empty) {
-			$this->jobList->add(self::class, ['uid' => $uid]);
-			$this->logger->info('New preview cleanup scheduled for ' . $uid);
-		} else {
-			$this->logger->info('Preview cleanup done for ' . $uid);
-		}
-	}
-
-	/**
-	 * @param $uid
-	 * @return bool
-	 */
-	private function cleanupPreviews($uid) {
-		try {
-			$userFolder = $this->rootFolder->getUserFolder($uid);
-		} catch (NotFoundException $e) {
-			return true;
-		}
-
-		$userRoot = $userFolder->getParent();
-
-		try {
-			/** @var Folder $thumbnailFolder */
-			$thumbnailFolder = $userRoot->get('thumbnails');
-		} catch (NotFoundException $e) {
-			return true;
-		}
-
-		$thumbnails = $thumbnailFolder->getDirectoryListing();
-
-		$start = $this->timeFactory->getTime();
-		foreach ($thumbnails as $thumbnail) {
-			try {
-				$thumbnail->delete();
-			} catch (NotPermittedException $e) {
-				// Ignore
-			}
-
-			if (($this->timeFactory->getTime() - $start) > 15) {
-				return false;
-			}
-		}
-
-		try {
-			$thumbnailFolder->delete();
-		} catch (NotPermittedException $e) {
-			// Ignore
-		}
-
-		return true;
-	}
-}
diff --git a/lib/private/Repair/NC11/MoveAvatars.php b/lib/private/Repair/NC11/MoveAvatars.php
deleted file mode 100644
index cff591904f1..00000000000
--- a/lib/private/Repair/NC11/MoveAvatars.php
+++ /dev/null
@@ -1,73 +0,0 @@
-<?php
-/**
- * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-namespace OC\Repair\NC11;
-
-use OCP\BackgroundJob\IJobList;
-use OCP\IConfig;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
-
-class MoveAvatars implements IRepairStep {
-
-	/** @var IJobList */
-	private $jobList;
-
-	/** @var IConfig */
-	private $config;
-
-	/**
-	 * MoveAvatars constructor.
-	 *
-	 * @param IJobList $jobList
-	 * @param IConfig $config
-	 */
-	public function __construct(IJobList $jobList,
-								IConfig $config) {
-		$this->jobList = $jobList;
-		$this->config = $config;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getName() {
-		return 'Add move avatar background job';
-	}
-
-	public function run(IOutput $output) {
-		// only run once
-		if ($this->config->getAppValue('core', 'moveavatarsdone') === 'yes') {
-			$output->info('Repair step already executed');
-			return;
-		}
-		if ($this->config->getSystemValue('enable_avatars', true) === false) {
-			$output->info('Avatars are disabled');
-		} else {
-			$output->info('Add background job');
-			$this->jobList->add(MoveAvatarsBackgroundJob::class);
-			// if all were done, no need to redo the repair during next upgrade
-			$this->config->setAppValue('core', 'moveavatarsdone', 'yes');
-		}
-	}
-}
diff --git a/lib/private/Repair/NC11/MoveAvatarsBackgroundJob.php b/lib/private/Repair/NC11/MoveAvatarsBackgroundJob.php
deleted file mode 100644
index 81f375e1b41..00000000000
--- a/lib/private/Repair/NC11/MoveAvatarsBackgroundJob.php
+++ /dev/null
@@ -1,146 +0,0 @@
-<?php
-/**
- * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Joas Schilling <coding@schilljs.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-namespace OC\Repair\NC11;
-
-use OC\BackgroundJob\QueuedJob;
-use OCP\Files\File;
-use OCP\Files\Folder;
-use OCP\Files\IAppData;
-use OCP\Files\IRootFolder;
-use OCP\Files\NotFoundException;
-use OCP\Files\SimpleFS\ISimpleFolder;
-use OCP\ILogger;
-use OCP\IUser;
-use OCP\IUserManager;
-
-class MoveAvatarsBackgroundJob extends QueuedJob {
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/** @var IAppData */
-	private $appData;
-
-	/** @var ILogger */
-	private $logger;
-
-	/**
-	 * MoveAvatars constructor.
-	 */
-	public function __construct() {
-		$this->userManager = \OC::$server->getUserManager();
-		$this->rootFolder = \OC::$server->getRootFolder();
-		$this->logger = \OC::$server->getLogger();
-		$this->appData = \OC::$server->getAppDataDir('avatar');
-	}
-
-	public function run($arguments) {
-		$this->logger->info('Started migrating avatars to AppData folder');
-		$this->moveAvatars();
-		$this->logger->info('All avatars migrated to AppData folder');
-	}
-
-	private function moveAvatars() {
-		try {
-			$ownCloudAvatars = $this->rootFolder->get('avatars');
-		} catch (NotFoundException $e) {
-			$ownCloudAvatars = null;
-		}
-
-		$counter = 0;
-		$this->userManager->callForSeenUsers(function (IUser $user) use ($counter, $ownCloudAvatars) {
-			$uid = $user->getUID();
-
-			\OC\Files\Filesystem::initMountPoints($uid);
-			/** @var Folder $userFolder */
-			$userFolder = $this->rootFolder->get($uid);
-
-			try {
-				$userData = $this->appData->getFolder($uid);
-			} catch (NotFoundException $e) {
-				$userData = $this->appData->newFolder($uid);
-			}
-
-			$foundAvatars = $this->copyAvatarsFromFolder($userFolder, $userData);
-
-			// ownCloud migration?
-			if ($foundAvatars === 0 && $ownCloudAvatars instanceof Folder) {
-				$parts = $this->buildOwnCloudAvatarPath($uid);
-				$userOwnCloudAvatar = $ownCloudAvatars;
-				foreach ($parts as $part) {
-					try {
-						$userOwnCloudAvatar = $userOwnCloudAvatar->get($part);
-					} catch (NotFoundException $e) {
-						return;
-					}
-				}
-
-				$this->copyAvatarsFromFolder($userOwnCloudAvatar, $userData);
-			}
-
-			$counter++;
-			if ($counter % 100 === 0) {
-				$this->logger->info('{amount} avatars migrated', ['amount' => $counter]);
-			}
-		});
-	}
-
-	/**
-	 * @param Folder $source
-	 * @param ISimpleFolder $target
-	 * @return int
-	 * @throws \OCP\Files\NotPermittedException
-	 * @throws NotFoundException
-	 */
-	protected function copyAvatarsFromFolder(Folder $source, ISimpleFolder $target) {
-		$foundAvatars = 0;
-		$avatars = $source->getDirectoryListing();
-		$regex = '/^avatar\.([0-9]+\.)?(jpg|png)$/';
-
-		foreach ($avatars as $avatar) {
-			/** @var File $avatar */
-			if (preg_match($regex, $avatar->getName())) {
-				/*
-				 * This is not the most effective but it is the most abstract way
-				 * to handle this. Avatars should be small anyways.
-				 */
-				$newAvatar = $target->newFile($avatar->getName());
-				$newAvatar->putContent($avatar->getContent());
-				$avatar->delete();
-				$foundAvatars++;
-			}
-		}
-
-		return $foundAvatars;
-	}
-
-	protected function buildOwnCloudAvatarPath($userId) {
-		$avatar = substr_replace(substr_replace(md5($userId), '/', 4, 0), '/', 2, 0);
-		return explode('/', $avatar);
-	}
-}
diff --git a/lib/private/Repair/NC12/InstallCoreBundle.php b/lib/private/Repair/NC12/InstallCoreBundle.php
deleted file mode 100644
index f7a2b07dec0..00000000000
--- a/lib/private/Repair/NC12/InstallCoreBundle.php
+++ /dev/null
@@ -1,80 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2017 Lukas Reschke <lukas@statuscode.ch>
- *
- * @author Lukas Reschke <lukas@statuscode.ch>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-namespace OC\Repair\NC12;
-
-use OC\App\AppStore\Bundles\BundleFetcher;
-use OC\Installer;
-use OCP\IConfig;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
-
-class InstallCoreBundle implements IRepairStep {
-	/** @var BundleFetcher */
-	private $bundleFetcher;
-	/** @var IConfig */
-	private $config;
-	/** @var Installer */
-	private $installer;
-
-	/**
-	 * @param BundleFetcher $bundleFetcher
-	 * @param IConfig $config
-	 * @param Installer $installer
-	 */
-	public function __construct(BundleFetcher $bundleFetcher,
-								IConfig $config,
-								Installer $installer) {
-		$this->bundleFetcher = $bundleFetcher;
-		$this->config = $config;
-		$this->installer = $installer;
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function getName() {
-		return 'Install new core bundle components';
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function run(IOutput $output) {
-		$versionFromBeforeUpdate = $this->config->getSystemValue('version', '0.0.0');
-
-		if (version_compare($versionFromBeforeUpdate, '12.0.0.14', '>')) {
-			return;
-		}
-
-		$defaultBundle = $this->bundleFetcher->getDefaultInstallationBundle();
-		foreach($defaultBundle as $bundle) {
-			try {
-				$this->installer->installAppBundle($bundle);
-				$output->info('Successfully installed core app bundle.');
-			} catch (\Exception $e) {
-				$output->warning('Could not install core app bundle: ' . $e->getMessage());
-			}
-		}
-	}
-}
diff --git a/lib/private/Repair/NC12/RepairIdentityProofKeyFolders.php b/lib/private/Repair/NC12/RepairIdentityProofKeyFolders.php
deleted file mode 100644
index f8b8b8bdc28..00000000000
--- a/lib/private/Repair/NC12/RepairIdentityProofKeyFolders.php
+++ /dev/null
@@ -1,112 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2017 Bjoern Schiessle <bjoern@schiessle.org>
- *
- * @author Bjoern Schiessle <bjoern@schiessle.org>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-
-namespace OC\Repair\NC12;
-
-
-use OC\Files\AppData\Factory;
-use OCP\Files\IRootFolder;
-use OCP\Files\SimpleFS\ISimpleFolder;
-use OCP\IConfig;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
-
-class RepairIdentityProofKeyFolders implements IRepairStep {
-
-	/** @var IConfig */
-	private $config;
-
-	/** @var \OC\Files\AppData\AppData */
-	private $appDataIdentityProof;
-
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/** @var string */
-	private $identityProofDir;
-
-	/**
-	 * RepairIdentityProofKeyFolders constructor.
-	 *
-	 * @param IConfig $config
-	 * @param Factory $appDataFactory
-	 * @param IRootFolder $rootFolder
-	 */
-	public function __construct(IConfig $config, Factory $appDataFactory, IRootFolder $rootFolder) {
-		$this->config = $config;
-		$this->appDataIdentityProof = $appDataFactory->get('identityproof');
-		$this->rootFolder = $rootFolder;
-
-		$instanceId = $this->config->getSystemValue('instanceid', null);
-		if ($instanceId === null) {
-			throw new \RuntimeException('no instance id!');
-		}
-		$this->identityProofDir = 'appdata_' . $instanceId . '/identityproof/';
-	}
-
-	/**
-	 * Returns the step's name
-	 *
-	 * @return string
-	 * @since 9.1.0
-	 */
-	public function getName() {
-		return "Rename folder with user specific keys";
-	}
-
-	/**
-	 * Run repair step.
-	 * Must throw exception on error.
-	 *
-	 * @param IOutput $output
-	 * @throws \Exception in case of failure
-	 * @since 9.1.0
-	 */
-	public function run(IOutput $output) {
-		$versionFromBeforeUpdate = $this->config->getSystemValue('version', '0.0.0');
-		if (version_compare($versionFromBeforeUpdate, '12.0.1.5', '<=')) {
-			$count = $this->repair();
-			$output->info('Repaired ' . $count . ' folders');
-		}
-	}
-
-	/**
-	 * rename all dirs with user specific keys to 'user-uid'
-	 *
-	 * @return int
-	 */
-	private function repair() {
-		$count = 0;
-		$dirListing = $this->appDataIdentityProof->getDirectoryListing();
-		/** @var ISimpleFolder $folder */
-		foreach ($dirListing as $folder) {
-			$name = $folder->getName();
-			$node = $this->rootFolder->get($this->identityProofDir . $name);
-			$node->move($this->identityProofDir . 'user-' . $name);
-			$count++;
-		}
-
-		return $count;
-	}
-}
diff --git a/lib/private/Repair/NC12/UpdateLanguageCodes.php b/lib/private/Repair/NC12/UpdateLanguageCodes.php
deleted file mode 100644
index a8522449d56..00000000000
--- a/lib/private/Repair/NC12/UpdateLanguageCodes.php
+++ /dev/null
@@ -1,91 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016 Morris Jobke <hey@morrisjobke.de>
- *
- * @author Joas Schilling <coding@schilljs.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-namespace OC\Repair\NC12;
-
-use OCP\DB\QueryBuilder\IQueryBuilder;
-use OCP\IConfig;
-use OCP\IDBConnection;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
-
-class UpdateLanguageCodes implements IRepairStep {
-	/** @var IDBConnection */
-	private $connection;
-
-	/** @var IConfig */
-	private $config;
-
-	/**
-	 * @param IDBConnection $connection
-	 * @param IConfig $config
-	 */
-	public function __construct(IDBConnection $connection,
-								IConfig $config) {
-		$this->connection = $connection;
-		$this->config = $config;
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function getName() {
-		return 'Repair language codes';
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function run(IOutput $output) {
-
-		$versionFromBeforeUpdate = $this->config->getSystemValue('version', '0.0.0');
-
-		if (version_compare($versionFromBeforeUpdate, '12.0.0.13', '>')) {
-			return;
-		}
-
-		$languages = [
-			'bg_BG' => 'bg',
-			'cs_CZ' => 'cs',
-			'fi_FI' => 'fi',
-			'hu_HU' => 'hu',
-			'nb_NO' => 'nb',
-			'sk_SK' => 'sk',
-			'th_TH' => 'th',
-		];
-
-		foreach ($languages as $oldCode => $newCode) {
-			$qb = $this->connection->getQueryBuilder();
-
-			$affectedRows = $qb->update('preferences')
-				->set('configvalue', $qb->createNamedParameter($newCode))
-				->where($qb->expr()->eq('appid', $qb->createNamedParameter('core')))
-				->andWhere($qb->expr()->eq('configkey', $qb->createNamedParameter('lang')))
-				->andWhere($qb->expr()->eq('configvalue', $qb->createNamedParameter($oldCode), IQueryBuilder::PARAM_STR))
-				->execute();
-
-			$output->info('Changed ' . $affectedRows . ' setting(s) from "' . $oldCode . '" to "' . $newCode . '" in preferences table.');
-		}
-	}
-}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index fb4484c72af..90072f8b63b 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -92,7 +92,6 @@ use OC\Notification\Manager;
 use OC\OCS\DiscoveryService;
 use OC\Remote\Api\ApiFactory;
 use OC\Remote\InstanceFactory;
-use OC\Repair\NC11\CleanPreviewsBackgroundJob;
 use OC\RichObjectStrings\Validator;
 use OC\Security\Bruteforce\Throttler;
 use OC\Security\CertificateManager;