message: delete the rest too
diff: @@ -715,8 +715,6 @@ class TimelinePanel extends React.Component {
  }
  this.lastRMSentEventId = this.state.readMarkerEventId;
  - const roomId = this.props.timelineSet.room.roomId;
  -
  debuglog('TimelinePanel: Sending Read Markers for ',
  this.props.timelineSet.room.roomId,
  'rm', this.state.readMarkerEventId,
  @@ -732,7 +730,7 @@ class TimelinePanel extends React.Component {
  if (e.errcode === 'M_UNRECOGNIZED' && lastReadEvent) {
  return MatrixClientPeg.get().sendReadReceipt(
  lastReadEvent,
  - {hidden: hiddenRR},
  + {},
  ).catch((e) => {
  console.error(e);
  this.lastRRSentEventId = undefined;
  