Revert of Adding debug dump to audio network adaptor.

webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h

Index: webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h b/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h
deleted file mode 100644
index da4b0317f6e450d2836394315760f458015f5011..0000000000000000000000000000000000000000
--- a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP_WRITER_H_
-#define WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP_WRITER_H_
-
-#include <memory>
-#include <string>
-
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/controller.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h"
-#include "webrtc/system_wrappers/include/file_wrapper.h"
-
-namespace webrtc {
-
-class DebugDumpWriter {
- public:
-  static std::unique_ptr<DebugDumpWriter> Create(FILE* file_handle);
-
-  virtual ~DebugDumpWriter() = default;
-
-  virtual void DumpEncoderRuntimeConfig(
-      const AudioNetworkAdaptor::EncoderRuntimeConfig& config,
-      int64_t timestamp) = 0;
-
-  virtual void DumpNetworkMetrics(const Controller::NetworkMetrics& metrics,
-                                  int64_t timestamp) = 0;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP_WRITER_H_