Remove modifications to emoji data

The previous two changes, I60097cd78f28764d83abe0d12b53e2a7e6c974dc
and Idcc8f1b66014b25758c163d908d34f06011d9927, added code to filter
out two characters that were getting removed from the emoji set. Now
that the upstream Unicode data file removes them (see
Ibfea01280d08df34dcdd03f5121aabd532a6eecc), we can remove the code.

Bug: 26187231
Change-Id: Ib849917d8978da1b24fe5fff17d62ad7c2de963a
1 file changed