Clean up codes

native/src/base/include/base.hpp

@@ -4,7 +4,6 @@
 #include "../files.hpp"
 #include "../misc.hpp"
 #include "../logging.hpp"
-#include "../missing.hpp"
 #include "../base-rs.hpp"
 
 using rust::xpipe2;

native/src/base/missing.hpp

@@ -1,17 +0,0 @@
-#pragma once
-
-#include <sys/syscall.h>
-#include <linux/fcntl.h>
-#include <unistd.h>
-#include <cerrno>
-#include <cstdio>
-
-static inline int fexecve(int fd, char* const* argv, char* const* envp) {
-    syscall(__NR_execveat, fd, "", argv, envp, AT_EMPTY_PATH);
-    if (errno == ENOSYS) {
-        char buf[256];
-        ssprintf(buf, sizeof(buf), "/proc/self/fd/%d", fd);
-        execve(buf, argv, envp);
-    }
-    return -1;
-}

native/src/base/xwrap.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <unistd.h>
 #include <dirent.h>
 #include <stdio.h>
 #include <poll.h>