[PATCH] x86_64: remove unusued 'flags' variable

Removes unused 'flags' variable from setup_IO_APIC_irq().

Signed-off-by: David Rientjes <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

arch/x86_64/kernel/io_apic.c

···
 	struct irq_cfg *cfg = irq_cfg + irq;
 	struct IO_APIC_route_entry entry;
 	cpumask_t mask;
-	unsigned long flags;
 
 	if (!IO_APIC_IRQ(irq))
 		return;