Fix: Unused variables

tienda_ilusion/don_confiao/frontend/don-confiao/src/components/Purchase.vue

@@ -109,26 +109,6 @@
     data() {
       return {
         valid: false,
-        drawer: false,
-        group: null,
-        items: [
-          {
-            title: 'Foo',
-            value: 'foo',
-          },
-          {
-            title: 'Bar',
-            value: 'bar',
-          },
-          {
-            title: 'Fizz',
-            value: 'fizz',
-          },
-          {
-            title: 'Buzz',
-            value: 'buzz',
-          },
-        ],
         purchase: {
           date: this.getCurrentDate(),
           client: null,