Uhh... Please don't remove docs on something that is still in the server. And it should be removed at 3.0. We shouldn't be breaking config files in minor releases.
Already happened between 2.0 and 2.2, when mod_access was changed to mod_authz_host.
That is a change to ./configure command line options and possibly LoadModule directives, but not really a direct change in the config file syntax.
'Breaking a config file' is IMO that you can't just copy your 2.0 config file and it works. And the new mod_auth(n|z) structure just did that: A 2.0 config file needed changes to work in 2.2.
Joost