Updated openstack/openstack
Project: openstack/cinder  5dae72fe32be766d4b0c1f1bc3eff3bb2a8d6a06

Remove code for deprecated extension path

As per the #NOTE, we should remove this code post-Grizzly.

Change-Id: I8b8e807f5e49e112159395e061f10b0a3acea33c