TTY: hso, do not set TTY MAGIC

It is set in alloc_tty_driver already. No need to re-set.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jan Dumon <j.dumon@option.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/net/usb/hso.c

@@ -3312,7 +3312,6 @@ static int __init hso_init(void)
 		return -ENOMEM;
 
 	/* fill in all needed values */
-	tty_drv->magic = TTY_DRIVER_MAGIC;
 	tty_drv->driver_name = driver_name;
 	tty_drv->name = tty_filename;