#include <unistd.h>
int32_t rmdir(const char *pathname);Will delete the directory if it is empty.
The app rmdir exposes this syscall.
Implemented in sys_file.c as sys_rmdir().
Syscall unlink to delete files.
Overview: syscalls
File Management Syscalls: mkdir | rmdir | get_dirent | mknod | open | close | read | write | lseek | dup | link | unlink | fstat