fs: remove unused path_put_init()

This helper has been unused for a while now.

Link: https://lore.kernel.org/r/20240822-bewuchs-werktag-46672b3c0606@braunerReviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

include/linux/path.h

@@ -18,12 +18,6 @@ static inline int path_equal(const struct path *path1, const struct path *path2)
 	return path1->mnt == path2->mnt && path1->dentry == path2->dentry;
 }
 
-static inline void path_put_init(struct path *path)
-{
-	path_put(path);
-	*path = (struct path) { };
-}
-
 /*
  * Cleanup macro for use with __free(path_put). Avoids dereference and
  * copying @path unlike DEFINE_FREE(). path_put() will handle the empty