Updated openstack/openstack
Project: openstack/cinder  744a3baf4bbfc884ab74a2278c574e3e3dba29d9

Capture exception when delete a volume detached

Currently, the cinder api validate volume state before validating volume
attach status, so the VolumeAttached exception will never be raised. this
patch change the order of validation to fix this issue.

Change-Id: I41451f5f9d8e60b3cfc1a8004b704285fc3ddc2b