With ansible you need to change the relevant step to use apt remove instead of apt install and to change the config file step in a step that removes the file.
Wait until you have 2 services that use the same resource. Now you need:
When both are enabled the resource is set up.
When either one (but not both) are enabled the resource is also set up.
When neither is configured the resource is removed.
Doing this with Ansible is a nightmare. And 99% of the time you don't even realize that you have this problem until your configs don't work for some reason.