Remove the v3 to v2 resource test case
Remove the v3 to v2 resource test case

With the v2.0 resource API removal in Queens, these tests are no longer
required.

bp removed-as-of-queens

Change-Id: Ie84d1b2e54281f512ebffe8372dd56a77b34af13

openstack/keystone,openstack/keystone,mahak/keystone,mahak/keystone,mahak/keystone,openstack/keystone