NaCl: Cleanup: Remove PpapiPluginRegisterDefaultThreadCreator()

ppapi/native_client/src/shared/ppapi_proxy/plugin_threading.cc

-/*
- * Copyright (c) 2011 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 <pthread.h>
-
-#include "native_client/src/include/nacl_macros.h"
-#include "native_client/src/shared/ppapi_proxy/ppruntime.h"
-
-
-/*
- * This provides a default definition that is overridden in the IRT.
- * TODO(mseaborn): Remove this when PPAPI is only supported via the IRT.
- * See http://code.google.com/p/nativeclient/issues/detail?id=1691
- */
-
-static int thread_create(uintptr_t *tid,
-                         void (*func)(void *thread_argument),
-                         void *thread_argument) {
-  /*
-   * We know that newlib and glibc use a small pthread_t type, so we
-   * do not need to wrap pthread_t values.
-   */
-  NACL_COMPILE_TIME_ASSERT(sizeof(pthread_t) == sizeof(uintptr_t));
-
-  return pthread_create((pthread_t *) tid, NULL,
-                        (void *(*)(void *thread_argument)) func,
-                        thread_argument);
-}
-
-static int thread_join(uintptr_t tid) {
-  return pthread_join((pthread_t) tid, NULL);
-}
-
-const static struct PP_ThreadFunctions thread_funcs = {
-  thread_create,
-  thread_join
-};
-
-void PpapiPluginRegisterDefaultThreadCreator() {
-  PpapiPluginRegisterThreadCreator(&thread_funcs);
-}