[PARPORT] Kill useful 'irq' arg from parport_{generic_irq,ieee1284_interrupt}

parport_ieee1284_interrupt() was not using its first arg at all.
Delete.

parport_generic_irq()'s second arg makes its first arg completely
redundant.  Delete, and use port->irq in the one place where we actually
need it.

Also, s/__inline__/inline/ to make the code look nicer.

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

drivers/parport/share.c

@@ -999,7 +999,7 @@ irqreturn_t parport_irq_handler(int irq, void *dev_id)
 {
 	struct parport *port = dev_id;
 
-	parport_generic_irq(irq, port);
+	parport_generic_irq(port);
 
 	return IRQ_HANDLED;
 }