[Compass app] Unnecessary notifyListeners() in _deleteBooking() callback

[orkan]

Since _deleteBooking() is an action callback called from Command._execute method, which in turn has it's own try...finally block with notifyListeners(), theres no need to duplicate this code in action, right?

samples/compass_app/app/lib/ui/home/view_models/home_viewmodel.dart

Lines 67 to 94 in 460d6f9

	Future<Result<void>> _deleteBooking(int id) async {
	try {
	final resultDelete = await _bookingRepository.delete(id);
	switch (resultDelete) {
	case Ok<void>():
	_log.fine('Deleted booking $id');
	case Error<void>():
	_log.warning('Failed to delete booking $id', resultDelete.error);
	return resultDelete;
	}
	// After deleting the booking, we need to reload the bookings list.
	// BookingRepository is the source of truth for bookings.
	final resultLoadBookings = await _bookingRepository.getBookingsList();
	switch (resultLoadBookings) {
	case Ok<List<BookingSummary>>():
	_bookings = resultLoadBookings.value;
	_log.fine('Loaded bookings');
	case Error<List<BookingSummary>>():
	_log.warning('Failed to load bookings', resultLoadBookings.error);
	return resultLoadBookings;
	}
	return resultLoadBookings;
	} finally {
	notifyListeners();
	}
	}

samples/compass_app/app/lib/utils/command.dart

Lines 53 to 70 in 460d6f9

	Future<void> _execute(CommandAction0<T> action) async {
	// Ensure the action can't launch multiple times.
	// e.g. avoid multiple taps on button
	if (_running) return;
	// Notify listeners.
	// e.g. button shows loading state
	_running = true;
	_result = null;
	notifyListeners();
	try {
	_result = await action();
	} finally {
	_running = false;
	notifyListeners();
	}
	}