Move to non-static version

The static version is used nowhere in the code and just decreases coverage

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

lib/private/Archive/Archive.php

 
 namespace OC\Archive;
 
-abstract class Archive{
-	/**
-	 * Open any of the supported archive types
-	 *
-	 * @param string $path
-	 * @return Archive|void
-	 */
-	public static function open($path) {
-		$mime = \OC::$server->getMimeTypeDetector()->detect($path);
-
-		switch($mime) {
-			case 'application/zip':
-				return new ZIP($path);
-			case 'application/x-gzip':
-				return new TAR($path);
-			case 'application/x-bzip2':
-				return new TAR($path);
-		}
-	}
-
+abstract class Archive {
 	/**
 	 * @param $source
 	 */

lib/private/Installer.php

 use OC\App\CodeChecker\EmptyCheck;
 use OC\App\CodeChecker\PrivateCheck;
 use OC\Archive\Archive;
+use OC\Archive\TAR;
 use OC_App;
 use OC_DB;
 use OC_Helper;
 				if($verified === true) {
 					// Seems to match, let's proceed
 					$extractDir = $this->tempManager->getTemporaryFolder();
-					$archive = Archive::open($tempFile);
+					$archive = new TAR($tempFile);
 
 					if($archive) {
 						$archive->extract($extractDir);