Deprecate FLAGS_quic_general_loss_algorithm.

net/quic/congestion_control/loss_detection_interface.cc

 // 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/loss_detection_interface.h"
 
 #include "net/quic/congestion_control/general_loss_algorithm.h"
-#include "net/quic/congestion_control/tcp_loss_algorithm.h"
-#include "net/quic/congestion_control/time_loss_algorithm.h"
 #include "net/quic/quic_bug_tracker.h"
 #include "net/quic/quic_flags.h"
 
 namespace net {
 
 // Factory for loss detection algorithm.
 LossDetectionInterface* LossDetectionInterface::Create(
     LossDetectionType loss_type) {
-  if (FLAGS_quic_general_loss_algorithm) {
-    return new GeneralLossAlgorithm(loss_type);
-  }
-  switch (loss_type) {
-    case kNack:
-      return new TCPLossAlgorithm();
-    case kTime:
-      return new TimeLossAlgorithm();
-  }
-  QUIC_BUG << "Unknown loss detection algorithm:" << loss_type;
-  return nullptr;
+  return new GeneralLossAlgorithm(loss_type);
 }
 
 }  // namespace net