[PARPORT] Remove unused 'irq' argument from parport irq functions

None of the drivers with a struct pardevice's ->irq_func() hook ever
used the 'irq' argument passed to it, so remove it.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/parport/share.c

@@ -524,7 +524,7 @@ void parport_remove_port(struct parport *port)
 struct pardevice *
 parport_register_device(struct parport *port, const char *name,
 			int (*pf)(void *), void (*kf)(void *),
-			void (*irq_func)(int, void *), 
+			void (*irq_func)(void *), 
 			int flags, void *handle)
 {
 	struct pardevice *tmp;