remove Redis PVC from Zulip installation

flux2/apps/zulip/kustomization.yaml

@@ -5,5 +5,4 @@ resources:
   - zulip-data-pvc.yaml
   - zulip-oauth-client.yaml
   - zulip-postgres-pvc.yaml
-  - zulip-redis-pvc.yaml
   - zulip-values-configmap.yaml

flux2/apps/zulip/zulip-redis-pvc.yaml

----
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: zulip-redis
-  namespace: stackspin-apps
-spec:
-  accessModes:
-    - ReadWriteOnce
-  volumeMode: Filesystem
-  resources:
-    requests:
-      storage: 2Gi
-  storageClassName: local-path

flux2/apps/zulip/zulip-values-configmap.yaml

@@ -43,9 +43,6 @@ data:
     redis:
       auth:
         password: "${redis_password}"
-      master:
-        persistence:
-          existingClaim: zulip-redis
       resources:
         limits:
           cpu: 200m