fs: remove now stale label in anon_inode_init()

The previous commit removed the register_filesystem() call and the
associated error handling, but left the label for the error path that no
longer exists.  Remove that too.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/anon_inodes.c

@@ -186,7 +186,6 @@ static int __init anon_inode_init(void)
 
 err_unregister_filesystem:
 	unregister_filesystem(&anon_inode_fs_type);
-err_exit:
 	panic(KERN_ERR "anon_inode_init() failed (%d)\n", error);
 }