message: remove Promise.config
diff: @@ -61,10 +61,6 @@ import { setTheme } from "../../theme";
  import { storeRoomAliasInCache } from '../../RoomAliasCache';
  import { defer } from "../../utils/promise";
  -// Disable warnings for now: we use deprecated bluebird functions
  -// and need to migrate, but they spam the console with warnings.
  -Promise.config({warnings: false});
  -
  /** constants for MatrixChat.state.view */
  const VIEWS = {
  // a special initial state which is only used at startup, while we are
  