diff --git a/addons/point_of_sale/static/src/js/screens.js b/addons/point_of_sale/static/src/js/screens.js
index 4cdcb7506bc..23fb308cc90 100644
--- a/addons/point_of_sale/static/src/js/screens.js
+++ b/addons/point_of_sale/static/src/js/screens.js
@@ -276,14 +276,8 @@ openerp.point_of_sale.load_screens = function load_screens(instance, module){ //
             this.hidden = false;
         },
 
-        help_button_action: function(){
-            this.gui.show_popup('help');
-        },
-
         barcode_product_screen:         'products',     //if defined, this screen will be loaded when a product is scanned
 
-        hotkeys_handlers: {},
-
         // what happens when a product is scanned : 
         // it will add the product to the order and go to barcode_product_screen. 
         barcode_product_action: function(code){