Remove the CSSOM.

sky/engine/core/css/CSSKeyframesRule.idl

Index: sky/engine/core/css/CSSKeyframesRule.idl
diff --git a/sky/engine/core/css/CSSKeyframesRule.idl b/sky/engine/core/css/CSSKeyframesRule.idl
deleted file mode 100644
index d85f8d19f17b2484fc260fad6606ba56b61db509..0000000000000000000000000000000000000000
--- a/sky/engine/core/css/CSSKeyframesRule.idl
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2008 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// Introduced in DOM Level ?:
-interface CSSKeyframesRule : CSSRule {
-    attribute DOMString name;
-    readonly attribute CSSRuleList cssRules;
-
-    [ImplementedAs=item, NotEnumerable] getter CSSKeyframeRule (unsigned long index);
-    void insertRule([Default=Undefined] optional DOMString rule);
-    void deleteRule([Default=Undefined] optional DOMString key);
-    CSSKeyframeRule findRule([Default=Undefined] optional DOMString key);
-};