Updated openstack/openstack
Project: openstack/nova  5480cd936b64e632dd468aa3561c992d27a6fc4f
null
Remove some dead dnsdomain code

Remove a method that was not used anywhere.  It also called a db API
method that doesn't exist.

Related to blueprint nova-network-objects

Change-Id: Ic4fafded3068e5d769ed68dce07f9c8b58954cc3