Remove QUIC's ReceiveAlgorithmInterface now that it does nothing.

net/quic/test_tools/quic_connection_peer.h

Index: net/quic/test_tools/quic_connection_peer.h
diff --git a/net/quic/test_tools/quic_connection_peer.h b/net/quic/test_tools/quic_connection_peer.h
index 4493b5e76e147b4b21e62a43c60d6263c11f30ce..086e353df58033ebb1a2d009a788250cf75310de 100644
--- a/net/quic/test_tools/quic_connection_peer.h
+++ b/net/quic/test_tools/quic_connection_peer.h
@@ -26,7 +26,6 @@ class QuicPacketGenerator;
 class QuicPacketWriter;
 class QuicReceivedPacketManager;
 class QuicSentPacketManager;
-class ReceiveAlgorithmInterface;
 class SendAlgorithmInterface;
 
 namespace test {
@@ -36,9 +35,6 @@ class QuicConnectionPeer {
  public:
   static void SendAck(QuicConnection* connection);
 
-  static void SetReceiveAlgorithm(QuicConnection* connection,
-                                  ReceiveAlgorithmInterface* receive_algorithm);
-
   static void SetSendAlgorithm(QuicConnection* connection,
                                SendAlgorithmInterface* send_algorithm);