No, it’s not an error, and there’s no need to delete the worksheet. As you suggest, Form 8829 won’t be filed with your return.
Any worksheets generated by the program are simply used to support your own calculations. It’s a good idea to save them with a copy of your tax return, just for your personal records.
That way, if there’s ever any question raised by the IRS, you have the worksheet to substantiate your computations and justify not filing Form 8829.
