OpenSSL: Remove obsolete include directory
This directory was deprecated since OpenSSL 1.1.1e.
https://github.com/openssl/openssl/pull/9681
(cherry picked from commit b84081606110af6b5df764e3568c0271a5699daa)
(cherry picked from commit 36c368d91c22e84e2e0d0b570c3af45da61c1bc6)
Approved by: re (gjb)