message: Remove has_transport check from ReadyToUseRemoteCandidate.
  It turns out that this check always returns 'true' and is
  also not safe to do from this thread.
  Cr-Commit-Position: refs/heads/master@{#33626}
diff: @@ -4521,16 +4521,7 @@ bool SdpOfferAnswerHandler::ReadyToUseRemoteCandidate(
  return false;
  }
  - bool has_transport = false;
  - cricket::ChannelInterface* channel = pc_->GetChannel(result.value()->name);
  - if (channel) {
  - has_transport = !channel->transport_name().empty();
  - } else if (data_channel_controller()->data_channel_transport()) {
  - auto sctp_mid = pc_->sctp_mid();
  - RTC_DCHECK(sctp_mid);
  - has_transport = (result.value()->name == *sctp_mid);
  - }
  - return has_transport;
  + return true;
  }
  RTCErrorOr<const cricket::ContentInfo*> SdpOfferAnswerHandler::FindContentInfo(
  