Dropping fdopen workaround now that glibc has been fixed.

native_client_sdk/src/libraries/nacl_io/syscalls/fdopen.c

-/* Copyright (c) 2013 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. */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#include <stdio.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#if defined(__native_client__) && defined(__GLIBC__)
-
-static ssize_t fdopen_read(void *cookie, char *buf, size_t size) {
-  return read((int) cookie, buf, size);
-}
-
-static ssize_t fdopen_write(void *cookie, const char *buf, size_t size) {
-  return write((int) cookie, buf, size);
-}
-
-static int fdopen_seek(void *cookie, off_t *offset, int whence) {
-  off_t ret = lseek((int) cookie, *offset, whence);
-  if (ret < 0) {
-    return -1;
-  }
-  *offset = ret;
-  return 0;
-}
-
-static int fdopen_close(void *cookie) {
-  return close((int) cookie);
-}
-
-static cookie_io_functions_t fdopen_functions = {
-  fdopen_read,
-  fdopen_write,
-  fdopen_seek,
-  fdopen_close,
-};
-
-/*
- * TODO(bradnelson): Remove this glibc is fixed.
- * See: https://code.google.com/p/nativeclient/issues/detail?id=3362
- * Workaround fdopen in glibc failing due to it vetting the provided file
- * handles with fcntl which is not currently interceptable.
- */
-FILE *fdopen(int fildes, const char *mode) {
-  return fopencookie((void *) fildes, mode, fdopen_functions);
-}
-
-#endif  /* defined(__native_client__) && defined(__GLIBC__) */