code: def _server_rollback():
      
      #Remove the data and archive files specified in settings. The cron
      #gets remove by the _setup_server() script if -rollback is specified.
      from os import path, remove
      archpath = path.abspath(path.expanduser(settings.archfile))
      if path.isfile(archpath) and not args["nolive"]:
          vms("Removing archive JSON file at {}.".format(archpath))
          remove(archpath)
      datapath = path.abspath(path.expanduser(settings.datafile))
      if path.isfile(datapath) and not args["nolive"]:
          vms("Removing script database JSON file at {}".format(datapath))
          remove(datapath)
docs: Removes script database and archive files to rollback the CI server
      installation.