message: remove unused variable checkObjectHasNoAdditionalKeys
diff: @@ -54,7 +54,6 @@ import { replaceableComponent } from "../../../utils/replaceableComponent";
  import { getUnsentMessages } from "../../structures/RoomStatusBar";
  import { StaticNotificationState } from "../../../stores/notifications/StaticNotificationState";
  import { ResizeNotifier } from "../../../utils/ResizeNotifier";
  -import { checkObjectHasNoAdditionalKeys } from "matrix-js-sdk/src/utils";
  interface IProps {
  room: Room;
  