[NaCl SDK] nacl_io: Remove unneeded glibc syscall entry points.

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

Index: native_client_sdk/src/libraries/nacl_io/syscalls/mkdir.c
diff --git a/native_client_sdk/src/libraries/nacl_io/syscalls/mkdir.c b/native_client_sdk/src/libraries/nacl_io/syscalls/mkdir.c
deleted file mode 100644
index cecaa3d07655006fa748e95be40314c04d6c56fa..0000000000000000000000000000000000000000
--- a/native_client_sdk/src/libraries/nacl_io/syscalls/mkdir.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/* 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. */
-
-#include "nacl_io/kernel_intercept.h"
-#include "nacl_io/kernel_wrap.h"
-
-#if defined(__native_client__)
-// Don't wrap mkdir on host builds. This allows us to test against the real
-// "mkdir" on Linux standalone builds.
-
-int mkdir(const char* pathname, mode_t mode) {
-  return ki_mkdir(pathname, mode);
-}
-
-#endif