remove obsolete integration test, bump the master one

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

.drone.yml

@@ -71,7 +71,7 @@ clone:
 
 steps:
   - name: integration-tests-master
-    image: nextcloudci/user_saml_shibboleth-php7.3:user_saml_shibboleth_php7.3-1
+    image: nextcloudci/user_saml_shibboleth-php7.3:user_saml_shibboleth_php7.3-2
     environment:
       CORE_BRANCH: master
     commands:
@@ -96,36 +96,3 @@ trigger:
 
 type: docker
 
----
-kind: pipeline
-name: integration-tests-stable20
-
-clone:
-  depth: 1
-
-steps:
-  - name: integration-tests-stable20
-    image: nextcloudci/user_saml_shibboleth-php7.2:user_saml_shibboleth_php7.2-3
-    environment:
-      CORE_BRANCH: stable20
-    commands:
-      - /start.sh &
-      - sleep 7
-      - rm -rf /var/www/html
-      - cd /var/www/
-      - git clone --depth 1 -b $CORE_BRANCH https://github.com/nextcloud/server html
-      - cd /var/www/html && git submodule update --init
-      # use local clone
-      - cp -r /drone/src /var/www/html/apps/user_saml
-      - scl enable rh-php72 "bash -c 'php /var/www/html/occ maintenance:install --database sqlite --admin-pass password; php /var/www/html/occ app:enable user_saml'"
-      - chown -R apache:apache /var/www/html/
-      - scl enable rh-php72 "bash -c 'cd /var/www/html/apps/user_saml/tests/integration && vendor/bin/behat'"
-
-trigger:
-  branch:
-    - master
-  event:
-    - pull_request
-    - push
-
-type: docker