Revert "Ubuntu: Add nova to kvm group"

This reverts commit f1d729fc61.

Reason for revert:
The issue has been fixed in the latest nova package in UCA.

Related-Bug: #2011535
Change-Id: Ie1fd92cb9f0cdfbd04b805f959f83b6628363ae8

manifests/nova.pp

@@ -250,17 +250,6 @@ class openstack_integration::nova (
     }
   }
 
-  # Remove this once fix for bug 2011535 is released
-  if $facts['os']['name'] == 'Ubuntu' {
-    user { 'nova':
-      ensure  => present,
-      name    => 'nova',
-      groups  => ['nova', 'kvm', 'libvirt-qemu'],
-      require => Anchor['nova::install::end'],
-      before  => Anchor['nova::service::begin'],
-    }
-  }
-
   Keystone_endpoint <||> -> Service['nova-compute']
   Keystone_service <||> -> Service['nova-compute']