Players are able to start with "Focus" skill. Other Bushido/Ninja and Necromancy skills should be disabled as well. - SekZ via Discord

Fixed. Will will be included in the next patch.
The following skills were removed: Necromancy, Focus, Chivalry, Bushido, Ninjitsu, Spellweaving.
There is no server-side support, so they can't go up/down and will have no effect on gameplay.

Note: Spellweaving is included in the client-side gump on my client. Depending on the client version others may appear, however, they should all be 0.0, and in any case, are not viewed by the server.