remove updating user ca key from shell command

roles/lxc_guest/tasks/main.yaml

@@ -167,11 +167,6 @@
     path: "/etc/ssh/user_ca.pub"
     text: "ssh-rsa {{ user_ca_key }}"
 
-- name: update container user ca key
-  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'ssh-rsa {{ user_ca_key }}' /etc/ssh/user_ca.pub || echo 'ssh-rsa {{ user_ca_key }}' > /etc/ssh/user_ca.pub"
-  register: update_user_ca_key
-  changed_when: "update_user_ca_key.stdout != 'ssh-rsa {{ user_ca_key }}'"
-
 - name: trust user ca key
   shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'TrustedUserCAKeys /etc/ssh/user_ca.pub' /etc/ssh/sshd_config || echo 'TrustedUserCAKeys /etc/ssh/user_ca.pub' >> /etc/ssh/sshd_config"
   register: trust_ca_key