powerpc/embedded6xx/flipper-pic: Don't match all IRQ domains

On the Wii, there is a secondary IRQ controller (hlwd-pic), so
flipper-pic's match operation should not be hardcoded to return 1.
In fact, the default matching logic is sufficient, and we can completely
omit flipper_pic_match.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/embedded6xx/flipper-pic.c

@@ -108,16 +108,8 @@ static int flipper_pic_map(struct irq_domain *h, unsigned int virq,
 	return 0;
 }
 
-static int flipper_pic_match(struct irq_domain *h, struct device_node *np,
-			     enum irq_domain_bus_token bus_token)
-{
-	return 1;
-}
-
-
 static const struct irq_domain_ops flipper_irq_domain_ops = {
 	.map = flipper_pic_map,
-	.match = flipper_pic_match,
 };
 
 /*