Remove hand-written implementations of constructors.

Source/WebCore/bindings/dart/custom/DartXSLTProcessorCustom.cpp

 // Copyright 2011, 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:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
 
 #include "config.h"
 #include "DartXSLTProcessor.h"
 
 //#if ENABLE(XSLT)
 
 namespace WebCore {
 
 namespace DartXSLTProcessorInternal {
 
-void constructorCallback(Dart_NativeArguments args)
-{
-    DartApiScope dartApiScope;
-    RefPtr<XSLTProcessor> xsltProcessor = XSLTProcessor::create();
-    DartDOMWrapper::returnValue(args, xsltProcessor.get());
-}
-
 void importStylesheetCallback(Dart_NativeArguments)
 {
     // FIXME: proper implementation.
     DART_UNIMPLEMENTED();
 }
 
 void transformToFragmentCallback(Dart_NativeArguments)
 {
     // FIXME: proper implementation.
     DART_UNIMPLEMENTED();
@@ skipping 21 matching lines @@
 {
     // FIXME: proper implementation.
     DART_UNIMPLEMENTED();
 }
 
 }
 
 }
 
 //#endif // ENABLE(XSLT)