fs: remove ksys_fchmod

Fold it into the only remaining caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/open.c

@@ -608,7 +608,7 @@ int vfs_fchmod(struct file *file, umode_t mode)
 	return chmod_common(&file->f_path, mode);
 }
 
-int ksys_fchmod(unsigned int fd, umode_t mode)
+SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
 {
 	struct fd f = fdget(fd);
 	int err = -EBADF;
@@ -620,11 +620,6 @@ int ksys_fchmod(unsigned int fd, umode_t mode)
 	return err;
 }
 
-SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
-{
-	return ksys_fchmod(fd, mode);
-}
-
 int do_fchmodat(int dfd, const char __user *filename, umode_t mode)
 {
 	struct path path;