You may have entered information that indicated to the program that it's necessary.
According to TC-40A - Supplemental Schedule Instructions in the TC-40 Instructions found on Utah's https://tax.utah.gov/forms-pubs page, you need to
Use TC-40A to enter five categories of items affecting your Utah individual income tax return:
Part 1 - Additions to Income (added to federal income)
Part 2 - Subtractions from Income (subtracted from federal income)
Part 3 - Apportionable Nonrefundable Credits (apportioned for non or part-year residents)
Part 4 - Nonapportionable Nonrefundable Credits Part 5 - Refundable Credits
If none of these conditions exist, you can delete it. See How do I view and delete forms in TurboTax Online? for guidance.
If this doesn't work, you'll need to remove the state return and go through the interview questions again. See How do I delete my state return in TurboTax Online?.
