Story #3642: Deprecate, migrate, or replace cn-stage-2 environment
unregister extraneous nodes in STAGE-2
Stage-2 is to be used for testing, and it has several unmaintained nodes, and those that are left over from prior testing. Remove these, but only after first checking with the node operators that its ok to do so:
This will leave just a single MN in the repo.
Also, decide whether to maintain three CN nodes in this environment, or just 1, and make the changes.