remove stringify

racket

Racket.js

@@ -24,13 +24,6 @@ module.exports = function() {
         },
         show:function(){
           _el.show();
-        },
-        stringify: function(){
-            var that = this;
-            return JSON.stringify({
-                x:that.getX(),
-                y:that.getY()
-            });
         }
     };
 }
\ No newline at end of file