USB: legousbtower: stop interrupt-out URB unconditionally

Stop also the interrupt-out URB unconditionally in
tower_abort_transfers() which is called from release() (for connected
devices). Calling usb_kill_urb() for an idle URB is perfectly fine.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191105084152.16322-8-johan@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/misc/legousbtower.c

@@ -448,7 +448,6 @@ static void tower_abort_transfers (struct lego_usb_tower *dev)
 {
 	/* shutdown transfer */
 	usb_kill_urb(dev->interrupt_in_urb);
-	if (dev->interrupt_out_busy)
 	usb_kill_urb(dev->interrupt_out_urb);
 }