Revert "Disable systemd-networkd & systemd-resolved"

https://github.com/camptocamp/puppet-systemd/pull/32 is disabling by default the services so we don't have to control them via TripleO.

This reverts commit d24874c7b2.

Change-Id: I4044f0b28b636c7a022912f6f24707bce22c8b98
Related-Bug: #1704160

puppet/services/database/mongodb-base.yaml

@@ -56,7 +56,3 @@ outputs:
         mongodb::server::journal: false
         mongodb::server::ipv6: {get_param: MongoDbIPv6}
         mongodb::server::replset: {get_param: MongoDbReplset}
-        # for now, we don't want to manage these services which are enabled
-        # by default with recent changes in puppet-systemd.
-        systemd::manage_networkd: false
-        systemd::manage_resolved: false

puppet/services/database/mysql.yaml

@@ -96,10 +96,6 @@ outputs:
                     - {get_param: [DefaultPasswords, mysql_root_password]}
             mysql_clustercheck_password: {get_param: MysqlClustercheckPassword}
             enable_galera: {get_param: EnableGalera}
-            # for now, we don't want to manage these services which are enabled
-            # by default with recent changes in puppet-systemd.
-            systemd::manage_networkd: false
-            systemd::manage_resolved: false
             # NOTE: bind IP is found in Heat replacing the network name with the
             # local node IP for the given network; replacement examples
             # (eg. for internal_api):

releasenotes/notes/systemd-d9a41bb3709d0653.yaml

@@ -1,9 +0,0 @@
----
-fixes:
-  - |
-    Latest commits in puppet-systemd enabled by default systemd-networkd and
-    systemd-resolved but we don't want to manage them for now in TripleO.
-    MySQL and MongoDB services were managing some systemd resources so now
-    we ensure that these 2 systemd services are disabled. In the future, we
-    might want and activate these services and revert that patch but for now
-    we want to disable them.