Merge pull request #4816 from mysterywolf/stdio

[rtlibc] remove libc_stdio.h

include/libc/libc_stdio.h

-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2020-09-05     Meco Man     the first version
- */
-
-#ifndef LIBC_STDIO_H__
-#define LIBC_STDIO_H__
-
-#include <rtconfig.h>
-
-#ifdef RT_USING_POSIX_GETLINE
-
-#include <posix_getline.h>
-
-#endif
-
-#endif

include/rtlibc.h

@@ -18,7 +18,6 @@
 #include "libc/libc_dirent.h"
 #include "libc/libc_signal.h"
 #include "libc/libc_fdset.h"
-#include "libc/libc_stdio.h"
 
 #ifndef RT_USING_LIBC
 #if defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__IAR_SYSTEMS_ICC__)