Remove FEC code from receive path.

net/quic/quic_received_packet_manager.cc

Index: net/quic/quic_received_packet_manager.cc
diff --git a/net/quic/quic_received_packet_manager.cc b/net/quic/quic_received_packet_manager.cc
index f4d121bbbf2bc00a51b2a6dd8bc30e98850ec87e..807944441976a53ce53f2d0069e24f514d435e9a 100644
--- a/net/quic/quic_received_packet_manager.cc
+++ b/net/quic/quic_received_packet_manager.cc
@@ -184,14 +184,6 @@ void QuicReceivedPacketManager::RecordPacketReceived(
   }
 }
 
-void QuicReceivedPacketManager::RecordPacketRevived(
-    QuicPacketNumber packet_number) {
-  QUIC_BUG_IF(!IsAwaitingPacket(packet_number)) << base::StringPrintf(
-      "Not waiting for %llu", static_cast<unsigned long long>(packet_number));
-  ack_frame_updated_ = true;
-  ack_frame_.latest_revived_packet = packet_number;
-}
-
 bool QuicReceivedPacketManager::IsMissing(QuicPacketNumber packet_number) {
   return ack_frame_.missing_packets.Contains(packet_number);
 }