Remove version_added from return values and docs fragments. (#150)

plugins/modules/database/postgresql/postgresql_db.py

@@ -190,7 +190,6 @@ executed_commands:
   returned: always
   type: list
   sample: ["CREATE DATABASE acme"]
-  version_added: '2.10'
 '''
 
 

plugins/modules/database/postgresql/postgresql_info.py

@@ -243,7 +243,6 @@ databases:
           - Content depends on PostgreSQL server version.
           returned: if configured
           type: dict
-          version_added: "2.10"
           sample: { "pub1": { "ownername": "postgres", "puballtables": true, "pubinsert": true, "pubupdate": true } }
         subscriptions:
           description:
@@ -252,7 +251,6 @@ databases:
           - Content depends on PostgreSQL server version.
           returned: if configured
           type: dict
-          version_added: "2.10"
           sample:
           - { "my_subscription": {"ownername": "postgres", "subenabled": true, "subpublications": ["first_publication"] } }
 repl_slots:

plugins/modules/database/postgresql/postgresql_lang.py

@@ -173,7 +173,6 @@ queries:
   returned: always
   type: list
   sample: ['CREATE LANGUAGE "acme"']
-  version_added: '2.8'
 '''
 
 from ansible.module_utils.basic import AnsibleModule

plugins/modules/database/postgresql/postgresql_privs.py

@@ -403,7 +403,6 @@ queries:
   returned: always
   type: list
   sample: ['REVOKE GRANT OPTION FOR INSERT ON TABLE "books" FROM "reader";']
-  version_added: '2.8'
 '''
 
 import traceback

plugins/modules/database/postgresql/postgresql_user.py

@@ -240,7 +240,6 @@ queries:
   returned: always
   type: list
   sample: ['CREATE USER "alice"', 'GRANT CONNECT ON DATABASE "acme" TO "alice"']
-  version_added: '2.8'
 '''
 
 import itertools