gfe-relnote: (n/a) Remove unused function QuicConnection::EnableSavingCryptoPackets. Not protected.

This function was used for stateless rejects, which has been removed.

PiperOrigin-RevId: 252041802
Change-Id: Ic5e91e5e0c89651a54712ec795facfe3ceeb03e2

quic/core/quic_connection.cc

diff --git a/quic/core/quic_connection.cc b/quic/core/quic_connection.cc
index 5e8e100..fad4a3b 100644
--- a/quic/core/quic_connection.cc
+++ b/quic/core/quic_connection.cc
@@ -258,7 +258,6 @@
       max_tracked_packets_(kMaxTrackedPackets),
       pending_version_negotiation_packet_(false),
       send_ietf_version_negotiation_packet_(false),
-      save_crypto_packets_as_termination_packets_(false),
       idle_timeout_connection_close_behavior_(
           ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET),
       close_connection_after_five_rtos_(false),
@@ -3223,10 +3222,6 @@
          packet_generator_.HasQueuedFrames();
 }
 
-void QuicConnection::EnableSavingCryptoPackets() {
-  save_crypto_packets_as_termination_packets_ = true;
-}
-
 bool QuicConnection::CanWriteStreamData() {
   // Don't write stream data if there are negotiation or queued data packets
   // to send. Otherwise, continue and bundle as many frames as possible.
@@ -3560,10 +3555,6 @@
     if (frame.type == CONNECTION_CLOSE_FRAME) {
       return true;
     }
-    if (save_crypto_packets_as_termination_packets_ &&
-        QuicUtils::IsHandshakeFrame(frame, transport_version())) {
-      return true;
-    }
   }
   return false;
 }

quic/core/quic_connection.h

diff --git a/quic/core/quic_connection.h b/quic/core/quic_connection.h
index a0d0cd0..601dad9 100644
--- a/quic/core/quic_connection.h
+++ b/quic/core/quic_connection.h
@@ -604,10 +604,6 @@
   // Testing only.
   size_t NumQueuedPackets() const { return queued_packets_.size(); }
 
-  // Once called, any sent crypto packets to be saved as the
-  // termination packet, for use with stateless rejections.
-  void EnableSavingCryptoPackets();
-
   // Returns true if the underlying UDP socket is writable, there is
   // no queued data and the connection is not congestion-control
   // blocked.
@@ -1260,9 +1256,6 @@
   // the original scope of the SerializedPacket.
   QueuedPacketList queued_packets_;
 
-  // If true, then crypto packets will be saved as termination packets.
-  bool save_crypto_packets_as_termination_packets_;
-
   // Contains the connection close packets if the connection has been closed.
   std::unique_ptr<std::vector<std::unique_ptr<QuicEncryptedPacket>>>
       termination_packets_;