This commit removes a bunch of tests that were originally written to
test the policy.v3cloudsample.json policy file. Now that we've
implemented system-scope, default roles, and removed the
policy.v3cloudsample.json policy file, we can remove these tests.
This commit also ports some token revocation tests over to the
protection test suite so we have full coverage from
TestTokenRevokeSelfAndAdmin.
Change-Id: Ie0c0b48d240b118f7b491d164e5c1a203ebb31e8
(cherry picked from commit 5f5f10630c)