Remove cinder-rpc-zmq-receiver

cinder-rpc-zmq-receiver should be removed as part of the switch to
oslo.messaging. It is now replaced with oslo-messaging-zmq-receiver.

Change-Id: I1fd7d7571bb5660bf77e7664f35052db29ebea57
Closes-Bug: #1348856
Merge "Remove cinder-rpc-zmq-receiver"