* Correctly remove the SUBREQ_CORE filter from the filter chain if we do an

  internal fast redirect and if the new redirected request is NO subrequest.
  This fixes at least one of the possible subtle issues mentioned in the
  comment to r620133.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@724515 13f79535-47bb-0310-9956-ffa450edef68