If your qualifying education expenses are more than your scholarship income then you don't need to enter your 1098-T form and that may prevent you from having to upgrade in TurboTax. If you can qualify as someone else's dependent, then you can't use the form 1098-T to qualify for an education credit.
You can delete the form 1098-T that you entered.
A simple way to delete forms in TurboTax online is to use the Tax Tools menu option, which is on your left menu bar when you are working in your program. Then, choose Tools and then Delete a form.
If you are working in the download TurboTax program, use the Forms Mode on your menu bar to bring up the form you want to delete, then choose the Delete Form option at the bottom of the form.