Fix deleting zones after tests

these tests create zones as part of the test but do clean them up
afterward slowly. This leads to these and following tests in the thread
to fail with over quota when default zone quota is sufficiently low.

Related-prod: PRODX-295
Change-Id: Iebe15ca6d0d3101237a92e011b081c38647a8de6
(cherry picked from commit 09b515e05c2625e14c21f54d0d36a7678f791dc3)
(cherry picked from commit 73cac6a4e14f9012daa274be58359fda6826da1f)
1 file changed