You are correct; there is no income tax for state of Florida, so there is no return to be filed. The software may generate one even if you don't need to file it. Please see below for how to remove or bypass that state return; depending on which version of software you are using.
If you are using the TurboTax CD/Download software, you can go to File tab and on the Select the Returns You're Ready to E-file screen, choose Do not e-file my state return now and then proceed to e-file your federal.
If you are using
TurboTax Online version, go here
How do I delete my state return in TurboTax Online? for steps to delete the state return; if you haven't paid or registered it yet. Otherwise, select
Skip State to skip preparing a Florida return when it brings you to the state section.
