Updated openstack/openstack
Project: openstack/nova  a618ae6f1fac46c281a1c16416f963dc0673622f

libvirt: convert test_vif.py to avoid DB usage

Remove use of the flavour APIs in the VIF test case avoiding
the need to hit the database. This allows conversion to the
NoDBTestCase which speeds up execution from 3 seconds to 0.3
seconds.

Partial-bug: #1369516
Change-Id: Ib0239b0f943baa1b1d81478b3b0d1e2ce1fb8722