genirq/irq_sim: Remove unused field from struct irq_sim_irq_ctx

The irqnum field is unused. Remove it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240122124243.44002-3-brgl@bgdev.pl

Author: Bartosz Golaszewski

kernel/irq/irq_sim.c

@@ -19,7 +19,6 @@ struct irq_sim_work_ctx {
 };
 
 struct irq_sim_irq_ctx {
-	int			irqnum;
 	bool			enabled;
 	struct irq_sim_work_ctx	*work_ctx;
 };