John Baldwin 16aabb761c Remove support for IPsec algorithms deprecated in r348205 and r360202.
Examples of depecrated algorithms in manual pages and sample configs
are updated where relevant.  I removed the one example of combining
ESP and AH (vs using a cipher and auth in ESP) as RFC 8221 says this
combination is NOT RECOMMENDED.

Specifically, this removes support for the following ciphers:
- des-cbc
- 3des-cbc
- blowfish-cbc
- cast128-cbc
- des-deriv
- des-32iv
- camellia-cbc

This also removes support for the following authentication algorithms:
- hmac-md5
- keyed-md5
- keyed-sha1
- hmac-ripemd160

Reviewed by:	cem, gnn (older verisons)
Relnotes:	yes
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D24342
2020-05-02 00:06:58 +00:00
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