Kill check_job_queue

check_job_queue has been set at ever-increasing arbitrary thresholds
since its inception while at the same time hasn't gotten smarted in its
checks and still relies on the total amount of jobs that are in the
queue.

This has historically resulted in a very high amount of false positives
that in turn has resulted in everyone regularly ignoring it, even if
it's been fired off for weeks at a time.

Meaningless CRITICAL checks are a bad habit and distract us from real
problems. Kill the check with fire, until someone comes up with a better
check that includes more heuristics.

Change-Id: I0005cb6f4913dcb4e046170fa086ef5df816522f