Remove CURSOR_VISIBILITY, it's always off

Source/core/css/CSSPrimitiveValueMappings.h

 /*
  * Copyright (C) 2007 Alexey Proskuryakov <ap@nypop.com>.
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 1133 matching lines @@
 
 template<> inline CSSPrimitiveValue::operator ECursor() const
 {
     if (m_value.ident == CSSValueCopy)
         return CURSOR_COPY;
     if (m_value.ident == CSSValueNone)
         return CURSOR_NONE;
     return static_cast<ECursor>(m_value.ident - CSSValueAuto);
 }
 
-
-#if ENABLE(CURSOR_VISIBILITY)
-template<> inline CSSPrimitiveValue::CSSPrimitiveValue(CursorVisibility e)
-    : CSSValue(PrimitiveClass)
-{
-    m_primitiveUnitType = CSS_IDENT;
-    switch (e) {
-    case CursorVisibilityAuto:
-        m_value.ident = CSSValueAuto;
-        break;
-    case CursorVisibilityAutoHide:
-        m_value.ident = CSSValueAutoHide;
-        break;
-    }
-}
-
-template<> inline CSSPrimitiveValue::operator CursorVisibility() const
-{
-    if (m_value.ident == CSSValueAuto)
-        return CursorVisibilityAuto;
-    if (m_value.ident == CSSValueAutoHide)
-        return CursorVisibilityAutoHide;
-
-    ASSERT_NOT_REACHED();
-    return CursorVisibilityAuto;
-}
-#endif
-
 template<> inline CSSPrimitiveValue::CSSPrimitiveValue(EDisplay e)
     : CSSValue(PrimitiveClass)
 {
     m_primitiveUnitType = CSS_IDENT;
     switch (e) {
         case INLINE:
             m_value.ident = CSSValueInline;
             break;
         case BLOCK:
             m_value.ident = CSSValueBlock;
@@ skipping 3342 matching lines @@
 
     ASSERT_NOT_REACHED();
     return MT_LUMINANCE;
 }
 
 #endif // ENABLE(SVG)
 
 }
 
 #endif