bindings: Retires ScriptWrappable::init, etc.

Source/modules/filesystem/Metadata.h

 /*
  * Copyright (C) 2010 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 40 matching lines @@
     }
 
     // Needs to return epoch time in milliseconds for Date while FileMetadata's modificationTime is in seconds.
     double modificationTime() const { return m_platformMetadata.modificationTime * 1000.0; }
     unsigned long long size() const { return static_cast<unsigned long long>(m_platformMetadata.length); }
 
     void trace(Visitor*) { }
 
 private:
     explicit Metadata(const FileMetadata& platformMetadata)
-        : m_platformMetadata(platformMetadata)
-    {
-        ScriptWrappable::init(this);
-    }
+        : m_platformMetadata(platformMetadata) { }
 
     FileMetadata m_platformMetadata;
 };
 
 } // namespace blink
 
 #endif // Metadata_h