Revert of Make OS audio buffer size limits visible.

media/base/mac/audio_latency_mac.h

Index: media/base/mac/audio_latency_mac.h
diff --git a/media/base/mac/audio_latency_mac.h b/media/base/mac/audio_latency_mac.h
deleted file mode 100644
index e6ad4ef7f1a82006acf62766a44491dd742af6c0..0000000000000000000000000000000000000000
--- a/media/base/mac/audio_latency_mac.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2017 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.
-
-#ifndef MEDIA_BASE_MAC_AUDIO_LATENCY_MAC_H_
-#define MEDIA_BASE_MAC_AUDIO_LATENCY_MAC_H_
-
-#include "base/macros.h"
-#include "media/base/media_export.h"
-
-namespace media {
-
-MEDIA_EXPORT int GetMinAudioBufferSizeMacOS(int min_buffer_size,
-                                            int sample_rate);
-
-}  // namespace media
-
-#endif  // MEDIA_BASE_MAC_AUDIO_LATENCY_MAC_H_