Drop import of CalendarWithControls

aleksis/apps/chronos/frontend/components/Timetable.vue

 <script>
 import { gqlAvailableTimetables } from "./timetables.graphql";
 import NoTimetableCard from "./NoTimetableCard.vue";
-import CalendarWithControls from "aleksis.core/components/calendar/CalendarWithControls.vue";
 
 export default {
   name: "Timetable",
-  components: { NoTimetableCard, CalendarWithControls },
+  components: { NoTimetableCard },
   apollo: {
     availableTimetables: {
       query: gqlAvailableTimetables,