update grafana dashboad annotation in kps

kubernetes/apps/observability/kube-prometheus-stack/app/helmrelease.yaml

@@ -191,18 +191,3 @@ spec:
           multicluster:
             etcd:
               enabled: true
-  postRenderers:
-    - kustomize:
-        patches:
-          - target:
-              version: v1
-              kind: ConfigMap
-              labelSelector: grafana_dashboard in (1)
-            patch: |-
-              apiVersion: v1
-              kind: ConfigMap
-              metadata:
-                name: not-used
-                namespace: not-used
-                annotations:
-                  grafana_folder: Kubernetes