Disable renewal mode, while retaining some properties of it.
It was done directly on server-code but it probably will work with CPPFLAGS. Haven't tested - It's not worth it, unless we actually decide to move to pre-re.
This is the counter-part of serverdata!288 (closed)
Do note it has not disabled all Renewal features - for instance, it kept exp/drop level-based balancing, and the renewal magic rules.