All of these algorithms are explicitly marked SHOULD NOT in one of these
RFCs.
Specifically, RFC 6649 deprecates all algorithms using DES as well as
the "export-friendly" variant of RC4. RFC 8429 deprecates Triple DES
and the remaining RC4 algorithms.
Reviewed by: cem
MFC after: 1 month
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D20343