hw/virtio/virtio-balloon: Remove the "class" property

This property was only required for compatibility reasons in the
pc-1.0 machine type and earlier. Now that these machine types have
been removed, the property is not useful anymore.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210203171832.483176-4-thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>

hw/virtio/virtio-balloon-pci.c

@@ -34,21 +34,13 @@ struct VirtIOBalloonPCI {
     VirtIOPCIProxy parent_obj;
     VirtIOBalloon vdev;
 };
-static Property virtio_balloon_pci_properties[] = {
-    DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
-    DEFINE_PROP_END_OF_LIST(),
-};
 
 static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
 {
     VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev);
     DeviceState *vdev = DEVICE(&dev->vdev);
 
-    if (vpci_dev->class_code != PCI_CLASS_OTHERS &&
-        vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */
-        vpci_dev->class_code = PCI_CLASS_OTHERS;
-    }
-
+    vpci_dev->class_code = PCI_CLASS_OTHERS;
     qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
 }
 
@@ -59,7 +51,6 @@ static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data)
     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
     k->realize = virtio_balloon_pci_realize;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-    device_class_set_props(dc, virtio_balloon_pci_properties);
     pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
     pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON;
     pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;