delete ubuntu 3 and echo server

ubuntu-vm-3/ks.yaml

@@ -1,18 +0,0 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
-kind: Kustomization
-metadata:
-  name: &app ubuntu-vm-3
-  namespace: ${TENANT_NAMESPACE}
-spec:
-  commonMetadata:
-    labels:
-      app.kubernetes.io/name: *app
-  path: ./ubuntu-vm-3/ubuntu
-  prune: true
-  sourceRef:
-    kind: GitRepository
-    name: tenant-repos
-  wait: false
-  interval: 30m
-  retryInterval: 1m
-  timeout: 5m