
Cater for the pending more general cinder support for configurable volume wiping method at: https://review.openstack.org/#/c/12521 This change is done here first so as to not trigger a CI lockup when the referenced patch above lands. When that's in place, we can remove the older secure_delete config adjustment in a subsequent patch. Change-Id: I73fe2e0d1cf2815ab6025121584951cb5ff56fa3