Eliminate a duplicate absolute path test, and NEVER serve a request

  Eliminate a duplicate absolute path test, and NEVER serve a request
  for an APR_DIR file from the cache when we have path_info, it is a
  contradition (APR_DIR always forces dir_walk to gather the next segment
  from path_info, even if it is APR_NOFILE, until we have no path_info.)

  So we can't use a predetermined filename/path_info combo, ever, if the
  filename resolves to an APR_DIR.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@92706 13f79535-47bb-0310-9956-ffa450edef68