That didn't work, unfortunately. I did call in to Support and they told me that this form will not be updated and available (Form 2210) until 2/17/2022 and that I should be able to delete the form if appropriate after that update; that the inability to delete the form is a failsafe in case the IRS changes something in the finalizing of the form. I'll check back in a week and see if this works. Hopefully this helps someone else.
