refactor(ExceptionDateRange): Remove duplicate condition

Author: binh-dam-ibigroup

lib/editor/components/ExceptionDateRange.js

@@ -50,7 +50,7 @@ export default class ExceptionDateRange extends Component<Props, State> {
     // This prevents the user from inputting invalid data. Validation is not required since this behaviour
     // is fully prevented (see also use of minDate and maxDate in DateTimePickers)
     if (
-      (isStartDate && (isStartDate && newRangeBoundary.diff(endMoment) > 0)) ||
+      (isStartDate && newRangeBoundary.diff(endMoment) > 0) ||
       (!isStartDate && newRangeBoundary.diff(startMoment) < 0)
     ) {
       // You should stop typing and have hit an incorrect date and we should flag the entry as incorrect