Remove ru and pt_br word prediction
Reason behind this: we don't have all lang word prediction like CM10.1 does, so why not keep the small lang word prediction
( en, es, fr, it, de) in base and provide the full lang LatinIME word prediction via a separate package. This cuts the LatinIME
in base zip size down by 3.3 MB roughly. Being slim and customizable and all :). We can back up the LatinIME for folks who install
full lang dict as they don't change much.
Change-Id: Icd1c4f387b067cdc84ecb9ddbe2b6ead76a8f134