Remove the hardcoded size limit parameter for ldap_search_ext_s

and replace it with an APR_ defined value that is set according
to the LDAP SDK being used.

Submitted by: David Jones <oscaremma gmail com>



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@517788 13f79535-47bb-0310-9956-ffa450edef68