Revert the hack for setting the lbmethod.

The problem is deeper inside caused by the
new hook to the balancer module that is never
called on WIN32.
Although the hack fixed core dump, the proxy is
still unusable because the configuration is failing
due to the empty lbmethod names array.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@233514 13f79535-47bb-0310-9956-ffa450edef68