readdir: Remove unused header include

Since commit c512c69 ("uaccess: implement a proper
unsafe_copy_to_user() and switch filldir over to it") the header file is
no longer needed.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Link: https://lore.kernel.org/r/20240602101534.348159-2-thorsten.blum@toblux.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

Author: toblux

fs/readdir.c

@@ -22,8 +22,6 @@
 #include <linux/compat.h>
 #include <linux/uaccess.h>
 
-#include <asm/unaligned.h>
-
 /*
  * Some filesystems were never converted to '->iterate_shared()'
  * and their directory iterators want the inode lock held for