Use zaqar v2 in integration tests

zaqar v1/1.1 has been deprecated since long. Though it's enabled
in the devstack plugin[1], this may cause some issues and potential
data loss. Better remove all it's usage.

[1] https://git.openstack.org/cgit/openstack/zaqar/tree/devstack/plugin.sh#n88

Change-Id: Ifa1636dcf296747735dc8d28c2feb108919c094d
2 files changed
tree: df9ee9abc21f3db08691cd5fe87da61d24edee25
  1. api/
  2. common/
  3. functional/
  4. scenario/