Clean up after getPropertyCSSValue

Source/core/css/CSSStyleDeclaration.idl

Index: Source/core/css/CSSStyleDeclaration.idl
diff --git a/Source/core/css/CSSStyleDeclaration.idl b/Source/core/css/CSSStyleDeclaration.idl
index bf6d0c46c05d6bec634cec17682647cd28f7a8e6..b1c354cddf6b058fe6a38576ca104fc474b9152a 100644
--- a/Source/core/css/CSSStyleDeclaration.idl
+++ b/Source/core/css/CSSStyleDeclaration.idl
@@ -37,10 +37,5 @@
     [Custom=(PropertyGetter,PropertyEnumerator,PropertyQuery)] getter (DOMString or float) (DOMString name);
     [Custom] setter void (DOMString propertyName, DOMString? propertyValue);
     readonly attribute CSSRule          parentRule;
-
-    // Deprecated as of 2003: http://lists.w3.org/Archives/Public/www-style/2003Oct/0347.html
-    // FIXME: This should be DeprecateAs=, but currently too many LayoutTests use
-    // this function and would need CONSOLE: message rebaselines!
-    [RuntimeEnabled=CSSValue, MeasureAs=CSSStyleDeclarationGetPropertyCSSValue] CSSValue           getPropertyCSSValue([Default=Undefined] optional DOMString propertyName);
 };