Remove double quote of postgres_listen_addresses

Already quoted in the new config template.
Signed-off-by: Florian Pritz <bluewind@xinu.at>

playbooks/apollo.yml

@@ -30,7 +30,7 @@
     - { role: postfix, postfix_server: false, postfix_smtpd_public: true, postfix_patchwork_enabled: true, tags: ["mail", "postfix"] }
     - { role: opendkim, dkim_selector: apollo, tags: ['mail', "opendkim"] }
     - { role: postfwd, tags: ['mail', "postfwd"] }
-    - { role: postgres, postgres_listen_addresses: "'*'", postgres_max_connections: 1000, postgres_ssl: 'on', postgres_shared_buffers: 4096MB,
+    - { role: postgres, postgres_listen_addresses: "*", postgres_max_connections: 1000, postgres_ssl: 'on', postgres_shared_buffers: 4096MB,
               tags: ['postgres'] }
     - { role: mariadb, mariadb_innodb_buffer_pool_size: '64M', mariadb_table_open_cache: '256', mariadb_query_cache_type: '0',
               mariadb_innodb_file_per_table: True, tags: ["mariadb"] }