virtio-devices: vhost_user: blk: Cleanup device creation

Prepare the device creation so that it can be factorized in a follow up
commit.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

vmm/src/device_manager.rs

@@ -1888,11 +1888,7 @@ impl DeviceManager {
                 queue_size: disk_cfg.queue_size,
             };
             let vhost_user_block_device = Arc::new(Mutex::new(
-                match virtio_devices::vhost_user::Blk::new(
-                    id.clone(),
-                    vu_cfg,
-                    self.seccomp_action.clone(),
-                ) {
+                match virtio_devices::vhost_user::Blk::new(id.clone(), vu_cfg) {
                     Ok(vub_device) => vub_device,
                     Err(e) => {
                         return Err(DeviceManagerError::CreateVhostUserBlk(e));