The v2 link handshake was one of the silliest things we ever did:
in an attempt to avoid sending our funny-looking certs back and forth,
we would first negotiate with a dummy set of certs and ciphers,
and then renegotiate with the ciphersuites we _really_ wanted.

We removed client-side support for this handshake back in
0.2.8.1-alpha, with ticket 11150.