Remove flaky metrics tests
Remove flaky metrics tests

It could be that we are using a newer version of a specific BOSH
release, but it's difficult to understand the real reason why these
system tests started failing. Since they are distracting us from
improving the monit scripts, we are removing them.

[#124356151]

Signed-off-by: Gerhard Lazu <1dbacecb153173531fe28399d2eb60d6542a913b@pivotal.io>

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