You will not be able to remove the Federal return when you electronically file your state return because they are both transmitted together. However, the Federal return should be recognized as a duplicate since it has already been filed.
See the following TurboTax help article for more information:
How do I e-file my state after I already filed my federal?
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"