On IRS' website, Topic No. 356, it states: 

"If you're a surviving spouse filing a joint return, or a court-appointed or court-certified personal representative filing an original return for the decedent, you don't have to file Form 1310."

https://www.irs.gov/taxtopics/tc356

Unless, like BobKammer said, the decedent's return is deemed Amended return, the court-appointed representative don't have to file Form 1310. But as I see the description in this topic, I don't think the return is considered an amended return.

I still think this issue is a software issue... Even Lacert Tax discussion board has a post mentioning the way to remove entry on Form 1310.

Links: https://proconnect.intuit.com/community/individual/help/1040-e-file-critical-diagnostic-form-1310-th...