pkcs11_openssl: Disable unused code

pkcs11_openssl: Disable unused code

Coverity: CID 1539183 (#1 of 1): Structurally dead code (UNREACHABLE)

Change-Id: I889de8bafb581b810a026c7359fbfee94f1b5a4e
Gerrit: http://gerrit.openvpn.net/c/openvpn/+/317
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Selva Nair <selva.nair@gmail.com>
Message-Id: <6b941ce86c4031a5535d6c1997e6ae06c9aec7b3-HTML@gerrit.openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg26901.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>