How can I remove the studen loan item from my deductions? I paid the loan off last year and have no tax documents because of it, but it keeps prompting me to add document

The best option is to remove the form or schedule that is requiring you to enter the information.   

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.