Remove nominate, ratings, fireplace categories, collections (bug 1001402)

https://bugzilla.mozilla.org/show_bug.cgi?id=1001402

Yogafire doesn't need all of this. I'm not sure we want to do this, and if we do there is more to remove, but this is to kickstart the discussion.

include.js went from 315k to 285k with this patch. I haven't compared loading times yet, but there is quite a bit of javascript that was parsed and executed before that is removed here.