temp disable bugzilla auditlog/metrics mails

do not annoy people with this until it's fixed

sorry, there's something going wrong with them,
while the same scripts have been running fine on kaulen
for a long time without doing the mailing wrong

so either when i moved misc/bugzilla to module bugzilla,
or the mail command on zirconium is different from kaulen
or else. I'll figure it out shortly, just not right now

and no worries, this was simply an annoyance, not related
to prod. bugzilla in any way

this will also disable the same from labs testing instances
if they use this module

sorry andre,qgil,paravoid and others for spam

Change-Id: I9519bcd135ca99496fa65b4e88d568bda1f7d520
Merge "temp disable bugzilla auditlog/metrics mails" into production