Cleaned up Box3.

src/math/Box3.js

@@ -229,9 +229,9 @@ THREE.Box3.prototype = {
 	getBoundingSphere: function ( optionalTarget ) {
 
 		var result = optionalTarget || new THREE.Sphere();
-		
+
 		result.center = this.center();
-		result.radius = this.size( THREE.Box3.__v0 ).length() * 0.5;;
+		result.radius = this.size( THREE.Box3.__v0 ).length() * 0.5;
 
 		return result;