fix unreachable code

weed/command/filer_replication.go

@@ -121,7 +121,6 @@ func runFilerReplicate(cmd *Command, args []string) bool {
 		}
 	}
 
-	return true
 }
 
 func validateOneEnabledInput(config *viper.Viper) {

weed/server/filer_grpc_server_listen.go

@@ -65,7 +65,6 @@ func (fs *FilerServer) SubscribeMetadata(req *filer_pb.SubscribeMetadataRequest,
 		fs.listenersLock.Unlock()
 	}
 
-	return nil
 }
 
 func (fs *FilerServer) addClient(clientType string, clientAddress string) (clientName string) {

weed/server/master_grpc_server.go

@@ -243,7 +243,6 @@ func (ms *MasterServer) KeepConnected(stream master_pb.Seaweed_KeepConnectedServ
 		}
 	}
 
-	return nil
 }
 
 func (ms *MasterServer) informNewLeader(stream master_pb.Seaweed_KeepConnectedServer) error {