You may want to delete the form manually to remedy this. The name of the form is: Form 8880, Credit for Qualified Retirement Savings Contributions. This article discusses the steps, or you can read below:

Here's the general procedure for viewing the forms list and deleting unwanted forms, schedules, and worksheets in TurboTax Online:

1. Open or continue your return in TurboTax.
2. In the left menu, select Tax Tools and then Tools.
3. In the pop-up window Tool Center, choose Delete a form.
4. Select Delete next to the form/schedule/worksheet in the list and follow the instructions.

...Another way in case that doesn't work:

Go thru the Retirement Savings Contribution Credit interview again, and when it asks if you were a student at any time during 2019...say YES.. 

Last year, that got rid of it  (of course, if it won't let you get that far, this won't work)