ironic: Remove redundant resource ordering
ironic: Remove redundant resource ordering

It is already ensured that RabbitMQ users are set up before ironic
services are started.

Change-Id: Icdc702b467d8b04d73a74c81ca5c312ee2b38bc3

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration