I'll assume you filed the state return by some method other than TurboTax. Are you asking how to delete a state return you started but don't need? If so, see this:
FAQ: How do I delete my state return in Online TurboTax?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/state-taxes/delete-state-return-turbotax...
