Minor clean up.

examples/webgl_animation_cloth.html

@@ -192,7 +192,6 @@
 				// cloth geometry
 				clothGeometry = new THREE.ParametricGeometry( clothFunction, cloth.w, cloth.h );
 				clothGeometry.dynamic = true;
-				clothGeometry.computeFaceNormals();
 
 				var uniforms = { texture:  { type: "t", value: clothTexture } };
 				var vertexShader = document.getElementById( 'vertexShaderDepth' ).textContent;