fixed css after cherry-pick again

resources/js/customer.js

@@ -1,6 +1,6 @@
 var data = require('./plugins/data');
 var isSendSms = false;
-
+var step = 1;
 function nocomma(num) {
     a = num.toString().replace(/\,/g, ''); // 1125, but a string, so convert it to number
     return a.toString();

resources/theme/js/theme.js

@@ -380,7 +380,6 @@ jQuery(function ($) {
     });
     try {
         if ($('#qnt').length != 0) {
-            let qnt ;
             let hasDiscount  = false;
             if ($("#discount").val() !== ''){