Try using the steps below to remove Form 8857 from your return.
To delete Form 8857 in TurboTax
Online:
1.
Go to "My Account" in the top right corner
2.
Select "Tools"
3.
Under "Tools Center" select "Delete a Form"
4.
Navigate to "Form 8857" and select "Delete"
next to it
If that does not work, try this:
1.
Go to the search bar in the top right corner
2.
Enter "Innocent Spouse Relief"
3.
Select "Jump to Innocent Spouse Relief"
4.
Answer "No" to "
Do you want to claim innocent or injured spouse relief?"
https://ttlc.intuit.com/replies/3302331