virtio-devices: remove incorrect comment

This device is not called virtio-vhost-user; that's something else.

I don't think the comment really clarifies anything anyway, so just
remove it.

Fixes: 8c618ff5e ("virtio-devices: generic-vhost-user: implement device")
Signed-off-by: Alyssa Ross <hi@alyssa.is>

virtio-devices/src/vhost_user/generic_vhost_user.rs

@@ -121,7 +121,7 @@ since the backend only supports {backend_num_queues}\n",
                     );
                     return Err(Error::BadQueueNum);
                 }
-                // Create virtio-vhost-user device configuration.
+
                 (
                     acked_features,
                     // If part of the available features that have been acked, the