src/southbridge: Drop unneeded empty lines

Change-Id: I02aa1e2a9a9061b34b91f832d96123a8595d61b7
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44592
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/southbridge/intel/ibexpeak/smihandler.c

@@ -107,7 +107,6 @@ void southbridge_smi_monitor(void)
 			mask |= (0xff << ((i - 16) << 2));
 	}
 
-
 	/* IOTRAP(3) SMI function call */
 	if (IOTRAP(3)) {
 		if (gnvs && gnvs->smif)