Get rid of the DAVParam support. That was a concept to help out

mod_dav providers in the 1.0.x series. Nowadays, the providers are
full-fledged Apache modules and can define their own directives and
set up per-server and per-directory parameters. (for example,
mod_dav_fs and the DAVLockDB directive)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93348 13f79535-47bb-0310-9956-ffa450edef68