Remove calling ERR_remove_thread_state when

using OpenSSL 1.1.0.

This API is now a no-op in OpenSSL 1.1.0 and
deprecated.

Backport of r1755725 from trunk.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x-openssl-1.1.0-compat@1755868 13f79535-47bb-0310-9956-ffa450edef68