Backport changes to LimitRequestFieldSize docs to reflect

the lifting of a related restriction in 2.0.53.  This
was a missed portion of that backport.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@279024 13f79535-47bb-0310-9956-ffa450edef68