Revert "openssl: Nix build goo for dynamically loaded engines."

Turns out there is a regression lurking here: the devcrypto engine
was made dynamic-only (https://github.com/openssl/openssl/pull/7859),
so to maintain that functionality, we need to build dynamic engines.
Will fix the aarch64 build issue and wire things up separately.

openssl: Nix build goo for dynamically loaded engines.

- Engines are deprecated in openssl 3.

- We never actually had the .so engines wired up to be built in
openssl 1.1, and judging by the lack of obsolete entries in the set
lists, I don't think we ever had them wired up to be built at all.

more engines and maps for them