Use permissions tests from rabbit release, not the test release
Use permissions tests from rabbit release, not the test release

These tests are way too tightly coupled to be worth keeping separate. We
can still use rabbit-release-test for other things in future, but these
ones deserve to live next to their code -- like unit tests.

[#142125509]

pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release