Delete your entry. If at the beginning, you included both names and indicated that you were filing jointly, the entry point gives you the option of choosing who the form belongs to. See the screen shot below.
Here
are the steps for deleting unwanted forms in TurboTax Online:
Open
your return in TurboTax. (To do this, sign in to TurboTax, and select the Take me to my return button.)
In the
left side bar, select Tax Tools> Tools.
In the pop-up window
Tool Center, choose Delete a form.
Select Delete next to the form/schedule/worksheet and
follow the onscreen instructions.