Replace designate-pool-manager by worker and producer services
Replace designate-pool-manager by worker and producer services

pool-manager was deprecated some releases ago and has been removed in
train so let's move to the recommended deployment.

Change-Id: Iec7ad6e3a6d33a41afbbd5c88311f262320e2429

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