Is there a way to remove the state return? I want to E-file my federal. That state is coming up with an error saying it would be rejected. So I should mail my return.

Have you tried efiling your federal return now and selecting to efile your state return later? That is how I handled efiling my federal return and printing and mailing my state return but my state return didn't have any errors in it.

Yes, there is.  You can delete your state tax return and only file your federal return. You will find the instructions listed in the TurboTax FAQ below:  https://ttlc.intuit.com/replies/3301384