Remove variation selectors from quick reactions

This fixes a regression introduced by the full emoji picker which inserted empty
variation selectors in the thumbs up / down quick reactions. Since this makes
them different characters, it would cause us to not aggregate thumbs from web
vs. mobile together.

Regressed by #3554
Fixes element-hq/element-web#11335

src/components/views/emojipicker/QuickReactions.js

@@ -21,7 +21,7 @@ import EMOJIBASE from 'emojibase-data/en/compact.json';
 import sdk from '../../../index';
 import { _t } from '../../../languageHandler';
 
-const QUICK_REACTIONS = ["👍️", "👎️", "😄", "🎉", "😕", "❤️", "🚀", "👀"];
+const QUICK_REACTIONS = ["👍", "👎", "😄", "🎉", "😕", "❤️", "🚀", "👀"];
 EMOJIBASE.forEach(emoji => {
     const index = QUICK_REACTIONS.indexOf(emoji.unicode);
     if (index !== -1) {