title: mapbox gl js disable controls
body: <p>Is there a way to hide/remove or disable controls such as the controls from mapbox-gl-draw?</p>
  
  <p>I add the draw control as follows</p>
  
  <pre><code>    draw = mapboxgl.Draw({
      drawing: true,
      displayControlsDefault: false,
      controls: {
          polygon: true,
          trash: true
      }
  });
  
  map.addControl(draw);
  </code></pre>
  
  <p>Once a polygon is drawn I want to disable or hide the control, hence is no longer possible to draw another polygon.</p>
  
  <p>Thanks a lot!</p>
  
  <p>Gregor</p>