[FIX]tooltip: remove old and not necessary tooltip line from pos start widget

bzr revid: csn@openerp.com-20140417122946-n8pq7ln66yg0n49m

addons/point_of_sale/static/src/js/widgets.js

@@ -943,8 +943,6 @@ function openerp_pos_widgets(instance, module){ //module is instance.point_of_sa
         start: function() {
             var self = this;
             return self.pos.ready.done(function() {
-                $('.oe_tooltip').remove();  // remove tooltip from the start session button
-                
                 // remove default webclient handlers that induce click delay
                 $(document).off();
                 $(window).off();