You will delete the db-journal if you are wanting to wipe. If you want to wipe save only and keep the map just delete the .sav, .sav.1, and .sav.2 for that map. All other map and savs can be deleted if you do not want them cluttering up the server folder. We are on 217 for the server version so you can delete 216 if you want. It does not affect the server at this point and is not used.