Examples: Clean up

examples/webaudio_orientation.html

@@ -158,7 +158,7 @@
 		var positionalAudio = new THREE.PositionalAudio( listener );
 		positionalAudio.setMediaElementSource( audioElement );
 		positionalAudio.setRefDistance( 1 );
-		positionalAudio.setDirectionalCone( 210, 230, 0.1 ); //  see https://developer.mozilla.org/en-US/docs/Web/API/PannerNode
+		positionalAudio.setDirectionalCone( 210, 230, 0.1 );
 
 		//