Examples: Clean up.

examples/webgpu_layers.html

@@ -52,9 +52,6 @@
 
 				scene.backgroundNode = horizontalEffect.add( lightEffect );
 
-
-				scene.add( camera );
-
 				const sprite = new THREE.TextureLoader().load( 'textures/sprites/blossom.png' );
 				sprite.colorSpace = THREE.SRGBColorSpace;