Delete default plugin external npapi entry points.

webkit/default_plugin/default_plugin.cc

-// Copyright (c) 2006-2008 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.
-
-#include "webkit/default_plugin/plugin_main.h"
-
-extern "C" {
-NPError API_CALL NP_GetEntryPoints(NPPluginFuncs* funcs) {
-  return default_plugin::NP_GetEntryPoints(funcs);
-}
-
-NPError API_CALL NP_Initialize(NPNetscapeFuncs* funcs) {
-  return default_plugin::NP_Initialize(funcs);
-}
-
-NPError API_CALL NP_Shutdown() {
-  return default_plugin::NP_Shutdown();
-}
-} // extern "C"