- SASL is not default since 2007 so remove an unneeded test about WITHOUT_SASL
which causes confusion that defining WITHOUT_SASL as building
openldap24-sasl-client would get you openldap24-client.
- Add an option to build without fetch(3) library, which in turn depends on
base OpenSSL. 
- Promote SASL and FETCH options to be on both client and library ports.
- Both SASL and FETCH remains their defaults (no and yes) so no PORTREVISION
PR: ports/145337 
Feature safe: yes