Delete domain option of 'user create' command
Delete domain option of 'user create' command

Openstack user create command doesn't have '--domain'
option now.

Change-Id: If36ae52e853fd70f1e7b54db8b6b8ade0b415968

stackforge/senlin,openstack/senlin,stackforge/senlin,tengqm/senlin-container,tengqm/senlin-container,openstack/senlin,openstack/senlin,Alzon/senlin,Alzon/senlin