CASH-823: remove leftover obsolete code

src/digital-components/date-picker/date-picker.vue

@@ -609,7 +609,6 @@ export default {
             const preSelectedDateObj = options.preSelectedDate
                 ? convertDateStringToDate(options.preSelectedDate)
                 : null;
-            let dates = [];
             let datesInshop = [];
             let datesMobile = [];
             const monthEndDate = new Date(yearNum, monthNum, 0);