Remove dependencies to collections

ansible/ansible#62847

Author: lkiesow

README.md

@@ -4,6 +4,16 @@ Ansible: Opencast PostgreSQL Role
 This Ansible role installs and prepares a PostgreSQL database server for Opencast.
 
 
+Dependencies
+------------
+
+This role requires the PostgreSQL community collection:
+
+```
+ansible-galaxy collection install community.postgresql
+```
+
+
 Role Variables
 --------------
 

meta/main.yml

@@ -12,6 +12,4 @@ galaxy_info:
       versions:
         - 8
 
-dependencies:
-  - community.postgresql.postgresql_db
-  - community.postgresql.postgresql_user
+dependencies: []