Clean up.

examples/webgl_shaders_sky.html

@@ -143,9 +143,7 @@
 
 				scene = new THREE.Scene();
 
-				var helper = new THREE.GridHelper( 5000, 5000 );
-				helper.color1.setHex( 0xffffff );
-				helper.color2.setHex( 0xffffff );
+				var helper = new THREE.GridHelper( 5000, 5000, 0xffffff, 0xffffff );
 				scene.add( helper );
 
 				renderer = new THREE.WebGLRenderer();