virtio-ccw: Don't advertise VIRTIO_F_BAD_FEATURE

This was copied from virtio-pci, but it doesn't make much sense for
ccw, as it doesn't have to handle the broken implementations this bit
is supposed to deal with. Remove it.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/s390x/virtio-ccw.c

diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 6e9f8c1..b7c07ef 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -1387,7 +1387,6 @@
     sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
 
     virtio_add_feature(&vdev->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
-    virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE);
 
     css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
                           d->hotplugged, 1);