Remove some code

This commit removes the contribution of a user that we cannot
trace to gain their consent for the licence change.

I also cleaned up the return/error-return flow a bit.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/5811)