diff --git a/public/static/admin/plugs.js b/public/static/admin/plugs.js
index 7de3dae03..ed071a60e 100644
--- a/public/static/admin/plugs.js
+++ b/public/static/admin/plugs.js
@@ -669,25 +669,6 @@ define(['zeroclipboard', 'jquery'], function (ZeroClipboard) {
             }
         });
 
-        (function ($) {
-            $.fn.serializeJson = function () {
-                var serializeObj = {};
-                var array = this.serializeArray();
-                $(array).each(function () {
-                    if (serializeObj[this.name]) {
-                        if ($.isArray(serializeObj[this.name])) {
-                            serializeObj[this.name].push(this.value);
-                        } else {
-                            serializeObj[this.name] = [serializeObj[this.name], this.value];
-                        }
-                    } else {
-                        serializeObj[this.name] = this.value;
-                    }
-                });
-                return serializeObj;
-            };
-        })(jQuery);
-
         $(form).bind("submit", function (event) {
             var elements = $(this).find(self.inputTag);
             if (self.isAllpass(elements, params) && params.validate() && $.isFunction(callback)) {