Remove CA dir deprecation warning from settings defaults

We added a warning to the CA dir setting that logs when it is configured to be inside the SSL dir. This warning is way too noisy, and we are going to remove it, in favor of just warning on server startup and from the CA CLI tool (this is already in place).

Warning to remove: https://github.com/puppetlabs/puppet/blob/main/lib/puppet/defaults.rb#L35-L47

Add similar warning that is logged in the server logs on startup. [INSERT LINK TO CODE HERE]