removed uneccessary link

Author: ashanhol

doc/api/crypto.md

@@ -2256,7 +2256,6 @@ the `crypto`, `tls`, and `https` modules and are generally specific to OpenSSL.
 [NIST SP 800-131A]: http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-131Ar1.pdf
 [NIST SP 800-132]: http://csrc.nist.gov/publications/nistpubs/800-132/nist-sp800-132.pdf
 [OpenSSL's SPKAC implementation]: https://www.openssl.org/docs/man1.0.2/apps/spkac.html
-[OpenSSL options]: #openssl-options
 [RFC 2412]: https://www.rfc-editor.org/rfc/rfc2412.txt
 [RFC 3526]: https://www.rfc-editor.org/rfc/rfc3526.txt
 [RFC 4055]: https://www.rfc-editor.org/rfc/rfc4055.txt