Remove NaClPluginLowLevelInitializationComplete() (caller of "init_done" SRPC)

src/shared/srpc/nacl_srpc_ppapi_plugin_init.c

-/*
- * Copyright (c) 2011 The Native Client 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 "native_client/src/shared/srpc/nacl_srpc_ppapi_plugin_internal.h"
-
-#include <stdio.h>
-
-/*
- * this function is replaceable in tests to insert code before the
- * NaClPluginLowLevelInitializationCompleteInternal function is
- * invoked, e.g., to emulate accesses made by ld.so to open manifest
- * files.
- */
-void NaClPluginLowLevelInitializationComplete(void) {
-  NaClPluginLowLevelInitializationCompleteInternal();
-}