message: Remove outdated TODO from QuicLossFunction
  Summary:
  If largestAckedPacket has value, then the ack is indeed acking
  something in the OP list.
diff: @@ -412,8 +412,6 @@ folly::Optional<CongestionController::LossEvent> handleAckForLoss(
  PacketNumberSpace pnSpace) {
  auto& largestAcked = getAckState(conn, pnSpace).largestAckedByPeer;
  if (ack.largestAckedPacket.hasValue()) {
  - // TODO: Should we NOT reset these counters if the received Ack frame
  - // doesn't ack anything that's in OP list?
  conn.lossState.ptoCount = 0;
  largestAcked = std::max<PacketNum>(
  largestAcked.value_or(*ack.largestAckedPacket),
  