[PATCH] x86_64: remove unusued 'flags' variable

Removes unused 'flags' variable from setup_IO_APIC_irq().
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/x86_64/kernel/io_apic.c

@@ -789,7 +789,6 @@ static void setup_IO_APIC_irq(int apic, int pin, unsigned int irq,
 	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;