Bugzilla: Temporarily reverting patch to Importance fields

Hi all,

As we've run into some unintended side effects from our latest local
changes to Bugzilla, I've reverted our field-restriction patch for the
time being.

This means that everyone will once again be able to make changes to
the Severity and Priority fields, so please do keep a watchful eye out
for miscategorized bugs.

The upgrade to Bugzilla v4.4.9 appears to be fine, so I'm leaving
those patches in place.

Thanks,
--R

-- 
Robinson Tryon
QA Engineer - The Document Foundation
LibreOffice Community Outreach Herald
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