Is it possible to remove Los Santos map?

Hey, im wondering if its possible to completely remove los santos map to use only custom made maps in the server for a specific gamemode that im developing. I did some searching and only info i could find was this:

[Release] Empty Map
which isnt working for me, and theres someone saying in comment section that level meta used for it is out of date.

and this
Script that remove totally Los Santos Map
that also have no solution for it and doesnt help in any way

find the fix ?