How do I remove a second state on a return?

I am doing my return and also my mother' (deceased) return.  I had a 1099-R for an RMD and typed that in her return.  Her state is Delaware.  I realized that the RMD was sent to me after her death.  I deleted that 1099-R from her return to mine as I now have her IRA which was rolled over to me as an Inherited IRA.  The problem is that my return is in North Carolina and my moms' return has both Delaware & North Carolina  (keeps telling me that she is a non-resident of North Carolina).  How can I delete North Carolina from her State return?