sb/intel/i82801ix/smihandler.c: Remove dead increment

The value stored to 'data' is never read. So remove dead increment and
commented out code.

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: Ifef67fc6415af1260d1a1df54f53fbe67f8860bb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62541
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>

src/southbridge/intel/i82801ix/smihandler.c

@@ -62,10 +62,6 @@ void southbridge_smi_monitor(void)
 		if (!(trap_cycle & (1 << 24))) { // It's a write
 			printk(BIOS_DEBUG, "SMI1 command\n");
 			data = RCBA32(0x1e18);
-			data &= mask;
-			// if (smi1)
-			// 	southbridge_smi_command(data);
-			// return;
 		}
 		// Fall through to debug
 	}