Remove webrtc/sound/ subdir.

webrtc/sound/soundsysteminterface.cc

Index: webrtc/sound/soundsysteminterface.cc
diff --git a/webrtc/sound/soundsysteminterface.cc b/webrtc/sound/soundsysteminterface.cc
deleted file mode 100644
index f1ee5a9a3516723690c3d7071bfed06adc8a8441..0000000000000000000000000000000000000000
--- a/webrtc/sound/soundsysteminterface.cc
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- *  Copyright 2004 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.
- */
-
-#include "webrtc/sound/soundsysteminterface.h"
-
-#include "webrtc/sound/sounddevicelocator.h"
-
-namespace rtc {
-
-void SoundSystemInterface::ClearSoundDeviceLocatorList(
-    SoundSystemInterface::SoundDeviceLocatorList *devices) {
-  for (SoundDeviceLocatorList::iterator i = devices->begin();
-       i != devices->end();
-       ++i) {
-    if (*i) {
-      delete *i;
-    }
-  }
-  devices->clear();
-}
-
-}  // namespace rtc