Remove QUIC's ReceiveAlgorithmInterface now that it does nothing.

net/quic/test_tools/quic_connection_peer.cc

Index: net/quic/test_tools/quic_connection_peer.cc
diff --git a/net/quic/test_tools/quic_connection_peer.cc b/net/quic/test_tools/quic_connection_peer.cc
index 1654686c7badad47743e5bf4da4502331a162396..201d451b449ca5e8cdc1f4414279c378f4324be6 100644
--- a/net/quic/test_tools/quic_connection_peer.cc
+++ b/net/quic/test_tools/quic_connection_peer.cc
@@ -5,7 +5,6 @@
 #include "net/quic/test_tools/quic_connection_peer.h"
 
 #include "base/stl_util.h"
-#include "net/quic/congestion_control/receive_algorithm_interface.h"
 #include "net/quic/congestion_control/send_algorithm_interface.h"
 #include "net/quic/quic_connection.h"
 #include "net/quic/quic_packet_writer.h"
@@ -23,14 +22,6 @@ void QuicConnectionPeer::SendAck(QuicConnection* connection) {
 }
 
 // static
-void QuicConnectionPeer::SetReceiveAlgorithm(
-    QuicConnection* connection,
-    ReceiveAlgorithmInterface* receive_algorithm) {
-  connection->received_packet_manager_.receive_algorithm_.reset(
-      receive_algorithm);
-}
-
-// static
 void QuicConnectionPeer::SetSendAlgorithm(
     QuicConnection* connection,
     SendAlgorithmInterface* send_algorithm) {