Updated openstack/openstack
Project: openstack/cinder  e6d7a73c778757690f4080c549d0cc03508f45d0
null
Redundant check in os-migrate_volume_completion

Remove the redundant check for 'migrate_volume_completion', and add the UT
for it.

Change-Id: I6b643dbf9ae1302cafe6748a361123d7d76c437f
Closes-Bug: #1254963