make it work

argocd/apps/mastodon.yaml

@@ -117,18 +117,6 @@ spec:
             tls: true
             preset: small_cluster
             existingSecret: mastodon-os
-            caSecret:
-              name: os-ca
-              key: ca.crt
-              mountPath: /etc/ssl/certs/os-ca.crt
-
-          volumes:
-            - name: dummy
-              emptyDir: {}
-          volumeMounts:
-            - name: dummy
-              mountPath: /tmp/dummy
-
           ingress:
             enabled: true
             className: traefik