hw/arm/aspeed: Remove dead code

Remove copy/paste typo from commit 6c323ab ("hw/arm/aspeed:
Adding new machine Tiogapass in QEMU").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

hw/arm/aspeed.c

@@ -1301,7 +1301,6 @@ static void aspeed_machine_tiogapass_class_init(ObjectClass *oc, void *data)
     mc->default_ram_size       = 1 * GiB;
     mc->default_cpus = mc->min_cpus = mc->max_cpus =
         aspeed_soc_num_cpus(amc->soc_name);
-        aspeed_soc_num_cpus(amc->soc_name);
 };
 
 static void aspeed_machine_sonorapass_class_init(ObjectClass *oc, void *data)