How do I prevent users from issuing AutoSSL certificates within their cPanel UI?
Is there a way to disable the SSL/TLS Status icon within cPanel?
In order to prevent users from running AutoSSL, you will want to ensure that the "sslinstall" feature is disabled for the feature list being used by the cPanel user account's assigned package. The change can be made within WHM's "Feature Manager" module.
You will also want to ensure that within WHM that the Tweak Setting "Allow cPanel users to install SSL Hosts." is disabled.