Axe a useless comment.

Remove some dead code and innacurate comment. 'r' can not be dereferenced later in the function. (this is obvious since r1814659)

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1857857 13f79535-47bb-0310-9956-ffa450edef68