hw/intc/loongarch_ipi: Remove property num-cpu

Since cpu number can be acquired from possible_cpu_arch_ids(),
num-cpu property is not necessary. Here remove num-cpu property
for object TYPE_LOONGARCH_IPI object.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>

hw/intc/loongarch_ipi.c

@@ -79,10 +79,6 @@ static void loongarch_ipi_realize(DeviceState *dev, Error **errp)
     }
 }
 
-static const Property loongarch_ipi_properties[] = {
-    DEFINE_PROP_UINT32("num-cpu", LoongsonIPICommonState, num_cpu, 1),
-};
-
 static void loongarch_ipi_class_init(ObjectClass *klass, void *data)
 {
     LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_CLASS(klass);
@@ -91,7 +87,6 @@ static void loongarch_ipi_class_init(ObjectClass *klass, void *data)
 
     device_class_set_parent_realize(dc, loongarch_ipi_realize,
                                     &lic->parent_realize);
-    device_class_set_props(dc, loongarch_ipi_properties);
     licc->get_iocsr_as = get_iocsr_as;
     licc->cpu_by_arch_id = loongarch_cpu_by_arch_id;
 }

hw/loongarch/virt.c

@@ -899,7 +899,6 @@ static void virt_irq_init(LoongArchVirtMachineState *lvms)
 
     /* Create IPI device */
     ipi = qdev_new(TYPE_LOONGARCH_IPI);
-    qdev_prop_set_uint32(ipi, "num-cpu", ms->smp.cpus);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal);
 
     /* IPI iocsr memory region */