Remove VoENetEqStats interface.

webrtc/voice_engine/voe_neteq_stats_impl.h

-/*
- *  Copyright (c) 2012 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_VOICE_ENGINE_VOE_NETEQ_STATS_IMPL_H
-#define WEBRTC_VOICE_ENGINE_VOE_NETEQ_STATS_IMPL_H
-
-#include "webrtc/voice_engine/include/voe_neteq_stats.h"
-
-#include "webrtc/common_types.h"
-#include "webrtc/voice_engine/shared_data.h"
-
-namespace webrtc {
-
-class VoENetEqStatsImpl : public VoENetEqStats {
- public:
-  int GetNetworkStatistics(int channel, NetworkStatistics& stats) override;
-
-  int GetDecodingCallStatistics(int channel,
-                                AudioDecodingCallStats* stats) const override;
-
- protected:
-  VoENetEqStatsImpl(voe::SharedData* shared);
-  ~VoENetEqStatsImpl() override;
-
- private:
-  voe::SharedData* _shared;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_VOICE_ENGINE_VOE_NETEQ_STATS_IMPL_H