[Samba] How to cleanly remove a DC from Samba domain?

[Alexandros Karypidis]

I connected to LDAP via Apache Directory Studio and it seems that the child node under the computer account is an RID set:

        CN=RID Set,CN=DC2,CN=Computers,DC=ad,DC=home,DC=lan

Is this an omission of the demotion process? Should this havfe been removed? Is it safe for me to delete this and try the "sambal-tool computer delete DC2" again?