Avoid unnecessary code (the deprecation macro wrapper itself emits unused args
warnings) in OpenSSL 1.1.0.

(Backs out and documents avoidance of _free()ing NULL references.)

Backports: r1783317,1783318,1783434,1783438



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x-openssl-1.1.0-compat@1785949 13f79535-47bb-0310-9956-ffa450edef68