config, Configure: move the check of removed crypto/ sub-systems
The 'config' script checked for a bunch of crypto/ sub-system
directories, and added 'no-' options if they weren't there.
We move it to 'Configure' in an effort to simplify 'config' for
further work.
Note: this is pretty much a historical thing. In modern OpenSSL, it's
much simpler to edit the SUBDIRS statement in crypto/build.info.
However, it's been claimed the there are those who still remove some
of these sub-system sources.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11217)