Remove timestamp_receiver. Not used.

net/quic/congestion_control/timestamp_receiver.cc

Index: net/quic/congestion_control/timestamp_receiver.cc
diff --git a/net/quic/congestion_control/timestamp_receiver.cc b/net/quic/congestion_control/timestamp_receiver.cc
deleted file mode 100644
index ad4407c1ad2370ecf851daf7a0563f07847f7da3..0000000000000000000000000000000000000000
--- a/net/quic/congestion_control/timestamp_receiver.cc
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/quic/congestion_control/timestamp_receiver.h"
-
-#include <utility>
-
-#include "base/basictypes.h"
-
-namespace net {
-
-TimestampReceiver::TimestampReceiver() {
-}
-
-TimestampReceiver::~TimestampReceiver() {
-}
-
-bool TimestampReceiver::GenerateCongestionFeedback(
-    QuicCongestionFeedbackFrame* feedback) {
-  if (received_packet_times_.size() <= 1) {
-    // Don't waste resources by sending a feedback frame for only one packet.
-    return false;
-  }
-  feedback->type = kTimestamp;
-
-  // Copy our current receive set to our feedback message, we will not resend
-  // this data if it is lost.
-  feedback->timestamp.received_packet_times = received_packet_times_;
-
-  // Prepare for the next set of arriving packets by clearing our current set.
-  received_packet_times_.clear();
-  return true;
-}
-
-void TimestampReceiver::RecordIncomingPacket(
-    QuicByteCount /*bytes*/,
-    QuicPacketSequenceNumber sequence_number,
-    QuicTime timestamp) {
-  received_packet_times_.insert(std::make_pair(sequence_number, timestamp));
-}
-
-}  // namespace net