Stop using absolute names for defined resource types

Since Puppet 4, names are always absolute. We already replaced usage of
absolute names for class inclusion, so can do the same for defined
resource types.

Change-Id: I2a190aa086dd09a0734a05713b5a5546450d85b0

manifests/db/mysql.pp

@@ -45,7 +45,7 @@ class placement::db::mysql(
 
   include placement::deps
 
-  ::openstacklib::db::mysql { 'placement':
+  openstacklib::db::mysql { 'placement':
     user          => $user,
     password      => $password,
     dbname        => $dbname,

manifests/db/postgresql.pp

@@ -34,7 +34,7 @@ class placement::db::postgresql(
 
   include placement::deps
 
-  ::openstacklib::db::postgresql { 'placement':
+  openstacklib::db::postgresql { 'placement':
     password   => $password,
     dbname     => $dbname,
     user       => $user,

manifests/wsgi/apache.pp

@@ -164,7 +164,7 @@ class placement::wsgi::apache (
 
   Anchor['placement::install::end'] -> Class['apache']
 
-  ::openstacklib::wsgi::apache { 'placement_wsgi':
+  openstacklib::wsgi::apache { 'placement_wsgi':
     bind_host                   => $bind_host,
     bind_port                   => $port,
     group                       => $::placement::params::group,