disable Bugzilla whining cron spam

this used to work on kaulen, on new BZ version though:
Can't locate Bugzilla.pm in @INC...
..compilation aborted at /srv/org/wikimedia/bugzilla/whine.pl line 17.

i see old docs for it on ancient BZ versions but not anymore for
the 4.4 or did i miss it?

disabling for now because it created cron spam (sorry for that)

Change-Id: Iae70bc596a573bdc996eb75834bb66ccd2db1e7e
Merge "disable Bugzilla whining cron spam" into production