revert

argocd/apps/mastodon.yaml

@@ -117,17 +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