* modules/ssl/ssl_engine_vars (ssl_var_lookup): const'ify result and

drop a bunch of casts; use apr_table_get directly in place of
ssl_var_lookup_header.
(ssl_var_lookup_header): Remove function.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk/modules/ssl@102854 13f79535-47bb-0310-9956-ffa450edef68