CASH-1790: refactoring and restoring watch on time-slot-question

(cherry picked from commit 290ea914e2)

src/layouts/schedule/time-slot-question/time-slot-question.vue

@@ -190,9 +190,6 @@ export default {
             this.updateDropoffAndTimeSlotAnswersFromSelectedRouteCodeData(newValue);
         },
         timeSlotsForSelectedDate() {
-            if (!this.isDatePickerDoneInitializing) {
-                return;
-            } // needed otherwise it nulls these too early and prevents a previously selected time slot from auto-selecting
             this.selectedAnswerForDropOffOrInshop = null;
             this.selectedAnswerForTimeSlots = null;
             this.autoSelectTimeSlotIfOnlyOneIsAvailable();