function(user, systemId, cb) {
    writeTimeline(user, systemId, 'system unlinked', function() {
      // swallow any errors here
      _meta.unregister(user, systemId, function(err) {
        cb(err);
      });
    });
  }
function(user, systemId, cb) {
    writeTimeline(user, systemId, 'system unlinked', function() {
      // swallow any errors here
      _meta.unregister(user, systemId, function(err) {
        cb(err);
      });
    });
  }
function ( user , systemId , cb ) { writeTimeline ( user , systemId , 'system unlinked' , function ( ) { // swallow any errors here _meta . unregister ( user , systemId , function ( err ) { cb ( err ) ; } ) ; } ) ; }
unlink system from the daemon
unlink system from the daemon