Clean up layers api

Author: Avaer Kazmer

app.html

@@ -103,7 +103,7 @@
 renderer.sortObjects = false;
 document.body.appendChild(renderer.domElement);
 
-root.addLayer(renderer.domElement);
+root.layers.push(renderer.domElement);
 
 _addControls(floorXrIframe);
 _addControls(introductionXrIframe);

src/xr-site.js

@@ -151,9 +151,6 @@ class XRSite extends HTMLElement {
   requestSession() {
     return this.sessionPromise;
   }
-  addLayer(layer) {
-    this.customLayers.push(layer);
-  }
 }
 customElements.define('xr-site', XRSite);