chanbackup: add SCB support for new anchor commitments

chanbackup/pubsub.go

@@ -213,12 +213,6 @@ func (s *SubSwapper) backupUpdater() {
 			// For all new open channels, we'll create a new SCB
 			// given the required information.
 			for _, newChan := range chanUpdate.NewChans {
-				// TODO(halseth): support chan backups for
-				// anchor types.
-				if newChan.ChanType.HasAnchors() {
-					continue
-				}
-
 				log.Debugf("Adding channel %v to backup state",
 					newChan.FundingOutpoint)