fix: don't add same rule twice

Author: soerenschneider

apps/hermes/components/istio-proxy/kustomization.yaml

@@ -11,21 +11,6 @@ patches:
   - target:
       kind: "NetworkPolicy"
     patch: |-
-      - op: add
-        path: "/spec/egress/-"
-        value:
-          to:
-            - namespaceSelector:
-                matchLabels:
-                  kubernetes.io/metadata.name: "kube-system"
-              podSelector:
-                matchLabels:
-                  k8s-app: "kube-dns"
-          ports:
-            - port: 53
-              protocol: "UDP"
-            - port: 53
-              protocol: "TCP"
       - op: add
         path: "/spec/egress/-"
         value: