vhost-vdpa: remove the unncessary queue_index assignment

The queue_index of NetClientState should be assigned in set_netdev()
afterwards, so trying to net_vhost_vdpa_init() is meaningless. This
patch removes this.

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20210903091031.47303-12-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

net/vhost-vdpa.c

@@ -165,7 +165,6 @@ static int net_vhost_vdpa_init(NetClientState *peer, const char *device,
     assert(name);
     nc = qemu_new_net_client(&net_vhost_vdpa_info, peer, device, name);
     snprintf(nc->info_str, sizeof(nc->info_str), TYPE_VHOST_VDPA);
-    nc->queue_index = 0;
     s = DO_UPCAST(VhostVDPAState, nc, nc);
     vdpa_device_fd = qemu_open_old(vhostdev, O_RDWR);
     if (vdpa_device_fd == -1) {