message: Remove unused import, constant
diff: @@ -45,8 +45,7 @@ import Markdown from '../../../Markdown';
  import ComposerHistoryManager from '../../../ComposerHistoryManager';
  import MessageComposerStore from '../../../stores/MessageComposerStore';
  -import {MATRIXTO_URL_PATTERN, MATRIXTO_MD_LINK_PATTERN} from '../../../linkify-matrix';
  -const REGEX_MATRIXTO = new RegExp(MATRIXTO_URL_PATTERN);
  +import {MATRIXTO_MD_LINK_PATTERN} from '../../../linkify-matrix';
  const REGEX_MATRIXTO_MARKDOWN_GLOBAL = new RegExp(MATRIXTO_MD_LINK_PATTERN, 'g');
  import {asciiRegexp, shortnameToUnicode, emojioneList, asciiList, mapUnicodeToShort} from 'emojione';
  