Removed Dartium SDK libs

sdk/lib/_chrome/dartium/chrome_dartium.dart

Index: sdk/lib/_chrome/dartium/chrome_dartium.dart
diff --git a/sdk/lib/_chrome/dartium/chrome_dartium.dart b/sdk/lib/_chrome/dartium/chrome_dartium.dart
deleted file mode 100644
index 716d4324c538b4f991fe75df58a924642c99f7b6..0000000000000000000000000000000000000000
--- a/sdk/lib/_chrome/dartium/chrome_dartium.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-/// Native wrappers for the Chrome Packaged App APIs.
-///
-/// These functions allow direct access to the Packaged App APIs, allowing
-/// Chrome Packaged Apps to be written using Dart.
-///
-/// For more information on these APIs, see the
-/// [Chrome APIs Documentation](http://developer.chrome.com/extensions/api_index.html)
-library _chrome;
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// DO NOT EDIT
-// Auto-generated dart:_chrome library.