I don't think you need to get rid of the earlier incarnation of the
project. ...
Skimming the documents, it appears that ASF has no position on the
disposition of the earlier incarnations of the. I think that
maintaining them as mirrors of the Apache code would be best option
for the community, for the NuttX trademark, and some protection
against a fork with a different, incompatible license. That way, there
is only one NuttX, Apache NuttX.
Certainly there are other forks of NuttX all over the internet (not
mirrors, but usually older clones), but I think people would always
want to go to the authoritative source and currently the world
believes that the Bitbucket repository is the authoritative source.
Hopefully that will change over time.
Certainly, there is no benefit to keep an old static version of the last
of the earlier incarnation. Anyone can recover that at will by checking
out that last version from GIT. If we are smart, we can tag the initial
Apache import to make that easier.