[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>
diff --git a/drivers/net/plip.c b/drivers/net/plip.c
index b5e9981..5071fcd 100644
--- a/drivers/net/plip.c
+++ b/drivers/net/plip.c
@@ -143,7 +143,7 @@
 static void plip_timer_bh(struct work_struct *work);
 
 /* Interrupt handler */
-static void plip_interrupt(int irq, void *dev_id);
+static void plip_interrupt(void *dev_id);
 
 /* Functions for DEV methods */
 static int plip_tx_packet(struct sk_buff *skb, struct net_device *dev);
@@ -380,7 +380,7 @@
 		container_of(work, struct net_local, timer.work);
 
 	if (!(atomic_read (&nl->kill_timer))) {
-		plip_interrupt (-1, nl->dev);
+		plip_interrupt (nl->dev);
 
 		schedule_delayed_work(&nl->timer, 1);
 	}
@@ -897,7 +897,7 @@
 
 /* Handle the parallel port interrupts. */
 static void
-plip_interrupt(int irq, void *dev_id)
+plip_interrupt(void *dev_id)
 {
 	struct net_device *dev = dev_id;
 	struct net_local *nl;