message: [model] Silence some warnings
  We should maybe remove this code later.
diff: // You should have received a copy of the GNU General Public License
  // along with ink!. If not, see <http://www.gnu.org/licenses/>.
  +#![allow(dead_code)]
  +
  use pdsl_model::{
  messages,
  state,
  @@ -32,8 +34,8 @@ messages! {
  }
  impl Noop {
  - pub fn deploy(&mut self, env: &mut EnvHandler) {}
  - pub fn do_nothing(&self, env: &EnvHandler) {}
  + pub fn deploy(&mut self, _env: &mut EnvHandler) {}
  + pub fn do_nothing(&self, _env: &EnvHandler) {}
  }
  #[rustfmt::skip]
  