Remove SVGElement.xmlbase/xmlspace/xmllang and no use codes.

Source/core/frame/UseCounter.h

 /*
  * Copyright (C) 2012 Google, 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
@@ skipping 590 matching lines @@
         DeviceOrientationInsecureOrigin = 670,
         DeviceOrientationSecureOrigin = 671,
         SandboxViaIFrame = 672,
         SandboxViaCSP = 673,
         BlockedSniffingImageToScript = 674,
         Fetch = 675,
         FetchBodyStream = 676,
         XMLHttpRequestAsynchronous = 677,
         WhiteSpacePreFromXMLSpace = 679,
         WhiteSpaceNowrapFromXMLSpace = 680,
-        SVGElementXmlbase = 681,
-        SVGElementXmllang = 682,
-        SVGElementXmlspace = 683,
         WindowMoveResizeMissingArguments = 684,
         SVGSVGElementForceRedraw = 685,
         SVGSVGElementSuspendRedraw = 686,
         SVGSVGElementUnsuspendRedraw = 687,
         SVGSVGElementUnsuspendRedrawAll = 688,
         AudioContextClose = 689,
         ServiceWorkerClientPostMessage = 690,
         CSSZoomNotEqualToOne = 691,
         SVGGraphicsElementGetTransformToElement = 692,
         ServiceWorkerClientsGetAll = 693,
@@ skipping 175 matching lines @@
 
     bool hasRecordedMeasurement(Feature feature) const { return m_countBits.hasRecordedMeasurement(feature); }
 
     CountBits m_countBits;
     BitVector m_CSSFeatureBits;
 };
 
 } // namespace blink
 
 #endif // UseCounter_h