We can't remove it for you as TurboTax does not have access to your account. Also, it could not have appeared in your return without you entering it somehow for the same reason. I'm not sure from your question if you are referring to an IRA distribution or contribution.
A distribution would be reported on a Form 1099-R. You can look for that in your program and delete it if it doesn't belong there as follows:
1. Choose the Tax Tools option on your left menu bar while working on your return
2. Choose Tools
3. Choose the Delete a form option under Other Helpful links
4. Find the Form 1099-R in the list and delete it
A contribution would be entered in the Deductions and Credits section in the Federal Taxes area. Find Retirement and Investments, then choose Traditional and Roth IRA contributions. Edit that section and remove any contributions that you didn't make.