Drop support for the RSA BSAFE SSL-C toolkit from configure,

and remove #ifdef'ed code from mod_ssl and ab where applicable.

Consensus for dropping support for SSL/TLS toolkits other
than OpenSSL was reached on dev@httpd in June 2010 (message
with ID <20100602162310.GA11156@redhat.com> and follow-ups).


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1154683 13f79535-47bb-0310-9956-ffa450edef68