Revert 245139 "Add libwebm in third_party."

trunk/src/third_party/libwebm/libwebm.gyp

Index: trunk/src/third_party/libwebm/libwebm.gyp
===================================================================
--- trunk/src/third_party/libwebm/libwebm.gyp	(revision 245186)
+++ trunk/src/third_party/libwebm/libwebm.gyp	(working copy)
@@ -1,18 +0,0 @@
-# Copyright 2014 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.
-
-{
-  'includes': [
-    'libwebm.gypi',
-  ],
-  'targets': [
-    {
-      'target_name': 'libwebm',
-      'type': 'static_library',
-      'sources': [
-        '<@(libwebm_sources)'
-      ]
-    },  # target libwebm
-  ]
-}