genirq: Remove handle_IRQ_event

Last user gone.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

include/linux/irq.h

@@ -413,9 +413,6 @@ static inline void irq_move_masked_irq(struct irq_data *data) { }
 
 extern int no_irq_affinity;
 
-/* Handle irq action chains: */
-extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
-
 /*
  * Built-in IRQ handlers for various IRQ types,
  * callable via desc->handle_irq()

kernel/irq/handle.c

@@ -188,15 +188,3 @@ irqreturn_t handle_irq_event(struct irq_desc *desc)
 	irq_compat_clr_progress(desc);
 	return ret;
 }
-
-/**
- * handle_IRQ_event - irq action chain handler
- * @irq:	the interrupt number
- * @action:	the interrupt action chain for this irq
- *
- * Handles the action chain of an irq event
- */
-irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
-{
-	return handle_irq_event_percpu(irq_to_desc(irq), action);
-}