Removing references/deleting shared folder

I've got a shared folder that lists its device as "n/a", and the only way I could figure out how to solve the lack of access was to create a new, differently -named shared folder that pointed to the same desired path. That worked, but now I'd like to delete the non-working shared folder name. The delete option is greyed out because it's referenced in /resetperms and /sharedfolders as shown by the attached screenshots. How do I remove these references and delete the dysfunctional shared folder?

Thanks for the help. I'm pretty new to all of this, but I have putty and can ssh if I know exactly what I'm looking for.

Worked! Of course. I'm still getting my head around the nomenclature; I'm still not sure what "reset permissions" actually does in the first place. Should probably have just left that alone at the beginning. Thanks so much!