src/arch: Drop unneeded empty lines

Change-Id: Ic86d2e6ad00cf190a2a728280f1a738486cb18c8
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44591
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/arch/x86/pirq_routing.c

@@ -28,7 +28,6 @@ static void check_pirq_routing_table(struct irq_routing_table *rt)
 	printk(BIOS_DEBUG, "%s(): Interrupt Routing Table located at %p.\n",
 		     __func__, addr);
 
-
 	sum = rt->checksum - sum;
 
 	if (sum != rt->checksum) {