bindings: Retires V8T::toEventTarget and reduces the binary size.

Source/bindings/tests/results/core/V8TestInterfaceEventTarget.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #ifndef V8TestInterfaceEventTarget_h
 #define V8TestInterfaceEventTarget_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
@@ skipping 24 matching lines @@
     static TestInterfaceEventTarget* toImplWithTypeCheck(v8::Isolate*, v8::Handle<v8::Value>);
     static const WrapperTypeInfo wrapperTypeInfo;
     static void refObject(ScriptWrappableBase*);
     static void derefObject(ScriptWrappableBase*);
     static void trace(Visitor* visitor, ScriptWrappableBase* scriptWrappableBase)
     {
 #if ENABLE(OILPAN)
         visitor->trace(scriptWrappableBase->toImpl<TestInterfaceEventTarget>());
 #endif
     }
-    static EventTarget* toEventTarget(v8::Handle<v8::Object>);
     static const int eventListenerCacheIndex = v8DefaultWrapperInternalFieldCount + 0;
     static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 1;
     static inline ScriptWrappableBase* toScriptWrappableBase(TestInterfaceEventTarget* impl)
     {
         return impl->toScriptWrappableBase();
     }
     static void installConditionallyEnabledProperties(v8::Handle<v8::Object>, v8::Isolate*) { }
     static void installConditionallyEnabledMethods(v8::Handle<v8::Object>, v8::Isolate*) { }
 };
 
 } // namespace blink
 
 #endif // V8TestInterfaceEventTarget_h