Revert r1572606 for the time being since backport would conflict with 2.4.x's proxy_conn_rec.

The uds_path field is at the end of the struct in 2.4.x but not in trunk.
Fix that first, then recommit.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1572627 13f79535-47bb-0310-9956-ffa450edef68