How do I delete form 8839 when it doesn't show up under delete form section?

Click on "Deductions & Credits"

Scroll down to "You and Your Family" and click Show more

Scroll down to "Adoption Credit" and click edit 

If the child is listed, click Edit and continue

If the child is not listed, do click "Add Another Child" 

This is not adding another child for the credit, simply adding the child into the TurboTax program for this return to claim the carry-over. 

The solution was deleting my state return and redoing it.