CSS3D molecules example: Removed unused parameter.

examples/css3d_molecules.html

@@ -390,7 +390,6 @@
 						var object = new THREE.CSS3DSprite( atom );
 						object.position.copy( position );
 						object.position.multiplyScalar( 75 );
-						object.billboard = true;
 
 						object.matrixAutoUpdate = false;
 						object.updateMatrix();