Get rid of DEFAULT_XFERLOG as it is not used anywhere. It was

preserved by the build system, printed with "httpd -V", but
apart from that completely ignored: the default transfer log
is to not produce any transfer log.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@95201 13f79535-47bb-0310-9956-ffa450edef68