Remove unused feature HTMLAppletElementLegacyCall

Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2014 Opera Software ASA. 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.
@@ skipping 180 matching lines @@
     WTF::OwnPtr<v8::Handle<v8::Value>[] > arguments = adoptArrayPtr(new v8::Handle<v8::Value>[info.Length()]);
     for (int i = 0; i < info.Length(); ++i)
         arguments[i] = info[i];
 
     TONATIVE_VOID(v8::Local<v8::Value>, retVal, instance->CallAsFunction(info.This(), info.Length(), arguments.get()));
     v8SetReturnValue(info, retVal);
 }
 
 } // namespace
 
-void V8HTMLAppletElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
-{
-    invokeOnScriptableObject<V8HTMLAppletElement>(info);
-    UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLAppletElement::toImpl(info.Holder())->document(), UseCounter::HTMLAppletElementLegacyCall);
-}
-
 void V8HTMLEmbedElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     invokeOnScriptableObject<V8HTMLEmbedElement>(info);
     UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLEmbedElement::toImpl(info.Holder())->document(), UseCounter::HTMLEmbedElementLegacyCall);
 }
 
 void V8HTMLObjectElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     invokeOnScriptableObject<V8HTMLObjectElement>(info);
     UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLObjectElement::toImpl(info.Holder())->document(), UseCounter::HTMLObjectElementLegacyCall);
 }
 
 } // namespace blink