Here's how to delete info about 1099-C in TurboTax Online:
1.
Open your return
in TurboTax.
(To do this, sign in to TurboTax, and click the orange Take me to my
return button.)
2.
In the upper right
corner, click My Account > Tools.
3.
In the pop-up
window, select Delete a form.
4.
Click Delete next
to 1099-C and follow the onscreen instructions.