No need to run mysql5 tests anymore

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

.drone.yml

@@ -473,107 +473,6 @@ trigger:
     - pull_request
     - push
 
----
-kind: pipeline
-name: mysql5.7-php7.4
-
-steps:
-- name: submodules
-  image: docker:git
-  commands:
-    - git submodule update --init
-- name: mysql-php7.4
-  image: nextcloudci/php7.4:latest
-  commands:
-    - bash tests/drone-run-php-tests.sh || exit 0
-    - NOCOVERAGE=true TEST_SELECTION=DB ./autotest.sh mysql
-
-services:
-- name: mysql
-  image: mysql:5.7
-  environment:
-    MYSQL_ROOT_PASSWORD: owncloud
-    MYSQL_USER: oc_autotest
-    MYSQL_PASSWORD: owncloud
-    MYSQL_DATABASE: oc_autotest
-  tmpfs:
-    - /var/lib/mysql
-
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - push
-
----
-kind: pipeline
-name: mysql5.7-php7.3
-
-steps:
-- name: submodules
-  image: docker:git
-  commands:
-    - git submodule update --init
-- name: mysql-php7.3
-  image: nextcloudci/php7.3:php7.3-4
-  commands:
-    - bash tests/drone-run-php-tests.sh || exit 0
-    - NOCOVERAGE=true TEST_SELECTION=DB ./autotest.sh mysql
-
-services:
-- name: mysql
-  image: mysql:5.7
-  environment:
-    MYSQL_ROOT_PASSWORD: owncloud
-    MYSQL_USER: oc_autotest
-    MYSQL_PASSWORD: owncloud
-    MYSQL_DATABASE: oc_autotest
-  tmpfs:
-    - /var/lib/mysql
-
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - push
-
----
-kind: pipeline
-name: mysql5.6-php7.3
-
-steps:
-- name: submodules
-  image: docker:git
-  commands:
-    - git submodule update --init
-- name: mysql5.6-php7.3
-  image: nextcloudci/php7.3:latest
-  commands:
-    - bash tests/drone-run-php-tests.sh || exit 0
-    - NOCOVERAGE=true TEST_SELECTION=DB ./autotest.sh mysql
-
-services:
-- name: cache
-  image: redis
-- name: mysql
-  image: mysql:5.6
-  environment:
-    MYSQL_ROOT_PASSWORD: owncloud
-    MYSQL_USER: oc_autotest
-    MYSQL_PASSWORD: owncloud
-    MYSQL_DATABASE: oc_autotest
-  tmpfs:
-    - /var/lib/mysql
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - pull_request
-    - push
-
 ---
 kind: pipeline
 name: postgres9-php7.3