diff --git a/controllers/apps/clusterdefinition_controller.go b/controllers/apps/clusterdefinition_controller.go
index d01c55b85e2..c44b7bdce7c 100644
--- a/controllers/apps/clusterdefinition_controller.go
+++ b/controllers/apps/clusterdefinition_controller.go
@@ -34,7 +34,6 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/log"
 
 	appsv1 "github.com/apecloud/kubeblocks/apis/apps/v1"
-	appsconfig "github.com/apecloud/kubeblocks/controllers/apps/configuration"
 	"github.com/apecloud/kubeblocks/pkg/constant"
 	"github.com/apecloud/kubeblocks/pkg/controller/component"
 	intctrlutil "github.com/apecloud/kubeblocks/pkg/controllerutil"
@@ -117,11 +116,8 @@ func (r *ClusterDefinitionReconciler) deletionHandler(rctx intctrlutil.RequestCt
 }
 
 func (r *ClusterDefinitionReconciler) deleteExternalResources(rctx intctrlutil.RequestCtx, clusterDef *appsv1.ClusterDefinition) error {
-	// delete any external resources associated with the cronJob
-	//
-	// Ensure that delete implementation is idempotent and safe to invoke
-	// multiple times for same object.
-	return appsconfig.DeleteConfigMapFinalizer(r.Client, rctx, clusterDef)
+	// delete any external resources associated with the cluster definition CR.
+	return nil
 }
 
 func (r *ClusterDefinitionReconciler) available(rctx intctrlutil.RequestCtx, clusterDef *appsv1.ClusterDefinition) error {