server/nextcloud: Removed previewgenerator app

roles/server/nextcloud/tasks/main.yml

@@ -134,7 +134,6 @@
     - oauth2
     - password_policy
     - polls
-    - previewgenerator
     - provisioning_api
     - quota_warning
     - serverinfo
@@ -159,25 +158,12 @@
     - updatenotification
     - workflowengine
 
-- name: Set background job mode to cron
-  become_user: "{{ system_user }}"
-  command: /usr/bin/php occ background:cron
-  args:
-    chdir: "{{ nextcloud_installation_directory }}"
-
 - name: Add background cron job
   cron:
     name: "nextcloud cron for {{ domain }}"
     minute: "*/5"
     job: "sudo -u {{ system_user }} php -f \"{{ nextcloud_installation_directory }}/cron.php\""
 
-- name: Add background cron job for preview generation
-  cron:
-    name: "nextcloud preview cron for {{ domain }}"
-    hour: 3
-    minute: 0
-    job: "sudo -u {{ system_user | quote }} php -f {{ nextcloud_installation_directory | quote }}/occ preview:pre-generate"
-
 - name: Configure auto backup of nextcloud data directory
   cron:
     hour: 1