message: Remove legacy group chat check
diff: @@ -245,14 +245,7 @@ export class MatrixHandler {
  req.log.info("Joined %s to room %s", invitedUser.getId(), event.room_id);
  // check if this room is a PM room or not.
  -
  - let isPmRoom = event.content.is_direct === true;
  - if (isPmRoom !== true) {
  - // Legacy check
  - const joinedMembers = await this.ircBridge.getAppServiceBridge().getIntent().matrixClient
  - .getJoinedRoomMembers(event.room_id);
  - isPmRoom = joinedMembers.length === 2 && joinedMembers.includes(event.sender);
  - }
  + const isPmRoom = event.content.is_direct === true;
  if (isPmRoom) {
  // nick is the channel
  @@ -457,7 +450,7 @@ export class MatrixHandler {
  // invite yet!)
  this.processingInvitesForRooms[event.room_id + event.state_key] = req.getPromise();
  req.getPromise().finally(() => {
  - delete this.processingInvitesForRooms[event.room_id + event.state_key];
  + delete this.processing#sForRooms[event.room_id + event.state_key];
  });
  // Check if this room is known to us.
  