gfe-relnote: (n/a) Cleanup references to stateless reject from QuicDispatcher. Code not used, not protected.

This is the last code cleanup for stateless reject.

PiperOrigin-RevId: 253095819
Change-Id: If87f5a39c37127dea5cbdc04a99bfc2973abab79
diff --git a/quic/core/quic_dispatcher.h b/quic/core/quic_dispatcher.h
index 1a023e0..19ecd63 100644
--- a/quic/core/quic_dispatcher.h
+++ b/quic/core/quic_dispatcher.h
@@ -244,9 +244,8 @@
 
   // Returns the actual client address of the current packet.
   // This function should only be called once per packet at the very beginning
-  // of ProcessPacket(), its result is saved to |current_client_address_|, which
-  // is guaranteed to be valid even in the stateless rejector's callback(i.e.
-  // OnStatelessRejectorProcessDone).
+  // of ProcessPacket(), its result is saved to |current_client_address_| while
+  // the packet is being processed.
   // By default, this function returns |current_peer_address_|, subclasses have
   // the option to override this function to return a different address.
   virtual const QuicSocketAddress GetClientAddress() const;
@@ -344,7 +343,7 @@
       const std::string& error_details,
       QuicTimeWaitListManager::TimeWaitAction action);
 
-  // Save/Restore per packet context. Used by async stateless rejector.
+  // Save/Restore per packet context.
   virtual std::unique_ptr<QuicPerPacketContext> GetPerPacketContext() const;
   virtual void RestorePerPacketContext(
       std::unique_ptr<QuicPerPacketContext> /*context*/) {}
@@ -383,14 +382,6 @@
   // and then ProcessUnauthenticatedHeaderFate.
   void ProcessHeader(const QuicPacketHeader& header);
 
-  // TODO(wub): Move the body to ProcessHeader, then remove this function.
-  // Determine whether the current packet needs to be processed now or buffered
-  // for later processing, then invokes ProcessUnauthenticatedHeaderFate.
-  void ProcessOrBufferPacket(QuicConnectionId server_connection_id,
-                             PacketHeaderFormat form,
-                             bool version_flag,
-                             ParsedQuicVersion version);
-
   // Deliver |packets| to |session| for further processing.
   void DeliverPacketsToSession(
       const std::list<QuicBufferedPacketStore::BufferedPacket>& packets,
@@ -465,8 +456,6 @@
   QuicConnectionIdSet temporarily_buffered_connections_;
 
   // Information about the packet currently being handled.
-
-  // Used for stateless rejector to generate and validate source address token.
   QuicSocketAddress current_client_address_;
   QuicSocketAddress current_peer_address_;
   QuicSocketAddress current_self_address_;