I tried the Annualize Income installment method to see if it would help. It did not. But how do I "undo" the numbers and remove this from my tax return??

[Critter-3]

Try deleting the form 2210 ..

If you are using the online editions and need to delete a form or schedule, click on Tools.  Click on Delete a form

To delete a form in the Online version:
1.Open your return in TurboTax Online, if you're not already signed in.
2.Click My Account (top of screen)
3.Click Tools
4.Under Other helpful link….. click Delete a form
5.Click Delete next to the form you want to Delete