Dynamic engine code still active

[lumag]

Even with OPENSSL_NO_DYNENGINE it is still possible to trigger dynamic engine loading code:

../apps/openssl engine -engine padlock
3073939132:error:260B6084:engine routines:DYNAMIC_LOAD:dso not found:../../portable/crypto/engine/eng_dyn.c:454:
3073939132:error:2606A074:engine routines:ENGINE_by_id:no such engine:../../portable/crypto/engine/eng_list.c:414:id=-engine
3073939132:error:260B6084:engine routines:DYNAMIC_LOAD:dso not found:../../portable/crypto/engine/eng_dyn.c:454:
3073939132:error:2606A074:engine routines:ENGINE_by_id:no such engine:../../portable/crypto/engine/eng_list.c:414:id=padlock

[busterb]

I experimented with replacing the dynamic engine code with no-op stubs. Will work on it a bit and see what the rest of the team thinks.

[busterb]

Disabling this caused some NULL pointer warnings in the engine iteration code. A corner case? Still looking at it.

[busterb]

This will likely go away in 2.2.x, once the cvs tree unlocks again for the next openbsd release.

[busterb]

The dynamic engine loader code is now removed, thanks!