remove the reduntant openvpn service restart

this was caught during the initial run, when the configs files were not copied/created
configs are getting copied from 24 to 53
https://0xacab.org/leap/container-platform/lilypad/-/blob/c6d787af527667d24631d61f7b3050d25cce8139/config/roles/openvpn/tasks/credentials.yml#L24
it should be fine to run this at L55

config/roles/openvpn/tasks/credentials.yml

@@ -9,12 +9,6 @@
       ca: "{{ credentials_dir }}/common/api_ca.crt"
       ca_key: "{{ credentials_dir }}/common/api_ca.key"
 
-- name: Restart openvpn because gateway certificate has changed
-  systemd:
-    name: docker-openvpn-openvpn.service
-    state: restarted
-  when: sspki_sign.changed
-
 - name: Add the docker-openvpn user to the openvpn-sspki group
   user:
     name: docker-openvpn