Remove CURSOR_VISIBILITY, it's always off

Source/core/css/CSSProperty.cpp

 /**
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
  *
  * 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,
@@ skipping 273 matching lines @@
     case CSSPropertyTextRendering:
     case CSSPropertyTextShadow:
     case CSSPropertyTextTransform:
     case CSSPropertyVariable:
     case CSSPropertyVisibility:
     case CSSPropertyWebkitAspectRatio:
     case CSSPropertyWebkitBorderHorizontalSpacing:
     case CSSPropertyWebkitBorderVerticalSpacing:
     case CSSPropertyWebkitBoxDirection:
     case CSSPropertyWebkitColorCorrection:
-#if ENABLE(CURSOR_VISIBILITY)
-    case CSSPropertyWebkitCursorVisibility:
-#endif
     case CSSPropertyWebkitFontFeatureSettings:
     case CSSPropertyWebkitFontKerning:
     case CSSPropertyWebkitFontSmoothing:
     case CSSPropertyWebkitFontVariantLigatures:
     case CSSPropertyWebkitLocale:
     case CSSPropertyWebkitHighlight:
     case CSSPropertyWebkitHyphenateCharacter:
     case CSSPropertyWebkitHyphenateLimitAfter:
     case CSSPropertyWebkitHyphenateLimitBefore:
     case CSSPropertyWebkitHyphenateLimitLines:
@@ skipping 388 matching lines @@
 }
 
 void CSSProperty::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_value, "value");
     info.ignoreMember(m_metadata);
 }
 
 } // namespace WebCore