Remove zaqar tests from tempest

These tests aren't run in any gating job that I can find on either
tempest or zaqar. Zaqar also falls outside of the scope we set for
projects with in-tree tempest tests. A plugin is being worked in
zaqar change I06053d2d0d761c6398708280f3ef38274dec390c. But,
since these tests are unverified and haven't been run in quite some
time lets just remove them.

Change-Id: I047392de3341169992fc5e64aec1e571059840a8
17 files changed