message: Back out "[quic] set GSO as default batching mode"
diff: @@ -74,7 +74,7 @@ struct TransportSettings {
  // flowControlWindowFrequency * window if the flow control changes.
  uint16_t flowControlWindowFrequency{2};
  // batching mode
  - QuicBatchingMode batchingMode{QuicBatchingMode::BATCHING_MODE_GSO};
  + QuicBatchingMode batchingMode{QuicBatchingMode::BATCHING_MODE_NONE};
  // maximum number of packets we can batch
  // does not apply to BATCHING_MODE_NONE
  uint32_t batchingNum{kDefaultQuicBatchingNum};
  