diff --git a/pkg/cluster/clustermap/map.go b/pkg/cluster/clustermap/map.go
index 6f6bf560a..989b51a2c 100644
--- a/pkg/cluster/clustermap/map.go
+++ b/pkg/cluster/clustermap/map.go
@@ -29,7 +29,6 @@ type ClusterMap interface {
 	ParentCluster(string) (string, error)
 	AllClusters() []string
 	DynamicKubeConfig(string) bool
-	ClusterNamespace(string) (string, error)
 	ClusterKubeconfigContext(string) (string, error)
 	ClusterAPIRef(string) (ClusterAPIRef, error)
 }
@@ -107,12 +106,6 @@ func (cm clusterMap) ClusterAPIRef(clusterName string) (ClusterAPIRef, error) {
 	}, nil
 }
 
-// ClusterNamespace a namespace for given cluster
-// TODO implement how to get namespace for cluster
-func (cm clusterMap) ClusterNamespace(clusterName string) (string, error) {
-	return "default", nil
-}
-
 // ClusterKubeconfigContext returns name of the context in kubeconfig corresponding to a given cluster
 func (cm clusterMap) ClusterKubeconfigContext(clusterName string) (string, error) {
 	cluster, exists := cm.apiMap.Map[clusterName]