Retirement tax questions

Yes you can remove it.

To EDIT IRA Contribution

 Click on Federal Taxes (Personal using Home and Business)

Click on Deductions and Credits

Click on I'll choose what I work on (if shown)

Under Retirement and Investments

On Traditional and Roth IRA Contributions click on the start or update button

You will uncheck the box(es) and then TurboTax will ask if you want to delete them.