Matt Thompson 28d2535227 Refresh multi-backend variables
This commit removes some deprecated tempest multi-backend variables
(tempest_volume_backend1_name, tempest_volume_backend2_name)
and adds a new variable tempest_volume_backend_names.

Change-Id: Ie62466940f81a96a9e42e237fc2609a98596f156
2017-02-15 17:04:34 -05:00
..