Environment: ArcGIS Pro 3.1.3.
Original Local Government Model, Parcel Fabric, includes Feature Classes (PLSS_Quarter_Section, PLSS_Quarter_Section_Lines, Conveyance_Division, and Conveyance_Division_Lines) that don't fit into our right-of-way parcel types. When trying to delete those Feature Classes, the outcome is a message:

I have a second Parcel Fabric, Local Government Model also, that has none of the four listed Feature Classes. So, I am not buying the "required dataset" message. Any ideas?