crypto: remove legacy openssl compatibility code
crypto: remove legacy openssl compatibility code

Remove code that works around a padding bug in older versions of openssl, the
bundled version of openssl contains the bug fix.

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node