get rid of some warnings for currently unused/unprototyped functions.

(we can actually compile mod_ssl with -Werror if -Wstrict-prototypes
is taken out)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk/modules/ssl@93862 13f79535-47bb-0310-9956-ffa450edef68