Remove the CSSOM.

sky/engine/core/css/CSSRule.idl

Index: sky/engine/core/css/CSSRule.idl
diff --git a/sky/engine/core/css/CSSRule.idl b/sky/engine/core/css/CSSRule.idl
deleted file mode 100644
index 09bb91cae60fe7c05bb43fe0060eeca3d452c676..0000000000000000000000000000000000000000
--- a/sky/engine/core/css/CSSRule.idl
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
- * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-// Introduced in DOM Level 2:
-[
-    Custom=Wrap,
-    DependentLifetime,
-    NotScriptWrappable,
-] interface CSSRule {
-
-    // RuleType
-    const unsigned short UNKNOWN_RULE = 0;
-    const unsigned short STYLE_RULE = 1;
-    const unsigned short MEDIA_RULE = 4;
-    const unsigned short FONT_FACE_RULE = 5;
-    const unsigned short KEYFRAMES_RULE = 7;
-    const unsigned short KEYFRAME_RULE = 8;
-    const unsigned short SUPPORTS_RULE = 12;
-    const unsigned short WEBKIT_FILTER_RULE = 17;
-
-    readonly attribute unsigned short   type;
-
-             attribute DOMString        cssText;
-
-    readonly attribute CSSStyleSheet    parentStyleSheet;
-    readonly attribute CSSRule          parentRule;
-
-};