Remove AddModule and ClearModuleList. Neither directive really makes

much sense anymore, since we use the hooks to order modules correctly.
This also removes the possability that one module will ever register the
same function for the same hook twice.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@87784 13f79535-47bb-0310-9956-ffa450edef68