Revert "Add GN Build file for rtc_sound target."

webrtc/sound/BUILD.gn

Index: webrtc/sound/BUILD.gn
diff --git a/webrtc/sound/BUILD.gn b/webrtc/sound/BUILD.gn
deleted file mode 100644
index 43decf8b7b079de1635e9be7aee83499351bb3ce..0000000000000000000000000000000000000000
--- a/webrtc/sound/BUILD.gn
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright 2015 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.
-import("../build/webrtc.gni")
-
-static_library("rtc_sound") {
-  sources = [
-    "automaticallychosensoundsystem.h",
-    "nullsoundsystem.cc",
-    "nullsoundsystem.h",
-    "nullsoundsystemfactory.cc",
-    "nullsoundsystemfactory.h",
-    "platformsoundsystem.cc",
-    "platformsoundsystem.h",
-    "platformsoundsystemfactory.cc",
-    "platformsoundsystemfactory.h",
-    "sounddevicelocator.h",
-    "soundinputstreaminterface.h",
-    "soundoutputstreaminterface.h",
-    "soundsystemfactory.h",
-    "soundsysteminterface.cc",
-    "soundsysteminterface.h",
-    "soundsystemproxy.cc",
-    "soundsystemproxy.h",
-  ]
-
-  configs += [ "..:common_config" ]
-  public_configs = [ "..:common_inherited_config" ]
-
-  if (is_clang) {
-    # Suppress warnings from Chrome's Clang plugins.
-    # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
-    configs -= [ "//build/config/clang:find_bad_constructs" ]
-  }
-
-  deps = [
-    "../base:rtc_base",
-  ]
-
-  if (is_linux) {
-    sources += [
-      "alsasoundsystem.cc",
-      "alsasoundsystem.h",
-      "alsasymboltable.cc",
-      "alsasymboltable.h",
-      "linuxsoundsystem.cc",
-      "linuxsoundsystem.h",
-      "pulseaudiosoundsystem.cc",
-      "pulseaudiosoundsystem.h",
-      "pulseaudiosymboltable.cc",
-      "pulseaudiosymboltable.h",
-    ]
-  }
-}