Remove cleanupipc cronjob

This cron job was part of the initial commit of the public Puppet repo, and no
one living remembers exactly what purpose it is supposed to serve. It is
clearing semaphore arrays owned by the Apache process. The best candidate for
what this is meant to clear are APC semaphores.

I ran this multiple times yesterday and it netted no results:

  salt 'mw*' cmd.run 'ipcs -s | grep apache'

So what I'd like to do is merge this, and then keep watching the output of that
command periodically.

Change-Id: Ie1bfa8f187092214fdeea64f2297db400c76431c
Merge "Remove cleanupipc cronjob" into production