irqchip/apple-aic: Drop unused ipi_hwirq field

This field was never used, remove it.

Signed-off-by: Marc Zyngier <[email protected]>
Acked-by: Hector Martin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Marc Zyngier

drivers/irqchip/irq-apple-aic.c

@@ -178,7 +178,6 @@ struct aic_irq_chip {
 	struct irq_domain *hw_domain;
 	struct irq_domain *ipi_domain;
 	int nr_hw;
-	int ipi_hwirq;
 };
 
 static DEFINE_PER_CPU(uint32_t, aic_fiq_unmasked);