system/fd_util: remove unused function open_cloexec()

src/system/fd_util.c

@@ -102,26 +102,6 @@ fd_set_nonblock(int fd)
 }
 
 int
-open_cloexec(const char *path_fs, int flags, int mode)
-{
-	int fd;
-
-#ifdef O_CLOEXEC
-	flags |= O_CLOEXEC;
-#endif
-
-#ifdef O_NOCTTY
-	flags |= O_NOCTTY;
-#endif
-
-	fd = open(path_fs, flags, mode);
-	if (fd >= 0)
-		fd_set_cloexec(fd, true);
-
-	return fd;
-}
-
-int
 pipe_cloexec_nonblock(int fd[2])
 {
 #ifdef WIN32

src/system/fd_util.h

@@ -55,13 +55,6 @@ int
 fd_set_cloexec(int fd, bool enable);
 
 /**
- * Wrapper for open(), which sets the CLOEXEC flag (atomically if
- * supported by the OS).
- */
-int
-open_cloexec(const char *path_fs, int flags, int mode);
-
-/**
  * Wrapper for pipe(), which sets the CLOEXEC flag (atomically if
  * supported by the OS).
  *