Updated openstack/openstack
Project: openstack/cinder  3de7da12d1098ef777305099e5f4a039e536bf99
null
Continue to delete volumes that DNE in rbd backend

If a volume has already been deleted in the RBD backend, catch the
exception and let Cinder continue removing it in the database.

Closes-Bug: #1254318
Change-Id: I99b591ce78d82c6eaabff0459d9c523e85c8e65f