opal: Remove events notifier

All users of the old opal events notifier have been converted over to
the irq domain so remove the event notifier functions.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/powernv/opal-irqchip.c

@@ -100,7 +100,6 @@ void opal_handle_events(uint64_t events)
 {
 	int virq, hwirq = 0;
 	u64 mask = opal_event_irqchip.mask;
-	u64 notifier_mask = 0;
 
 	if (!in_irq() && (events & mask)) {
 		last_outstanding_events = events;
@@ -108,19 +107,16 @@ void opal_handle_events(uint64_t events)
 		return;
 	}
 
-	while (events) {
+	while (events & mask) {
 		hwirq = fls64(events) - 1;
-		virq = irq_find_mapping(opal_event_irqchip.domain,
-					hwirq);
-		if (virq) {
-			if (BIT_ULL(hwirq) & mask)
+		if (BIT_ULL(hwirq) & mask) {
+			virq = irq_find_mapping(opal_event_irqchip.domain,
+						hwirq);
+			if (virq)
 				generic_handle_irq(virq);
-		} else
-			notifier_mask |= BIT_ULL(hwirq);
+		}
 		events &= ~BIT_ULL(hwirq);
 	}
-
-	opal_do_notifier(notifier_mask);
 }
 
 static irqreturn_t opal_interrupt(int irq, void *data)