TLS-HELLO HMs were based on the ssl-hello-chk option of haproxy, which
uses SSLv3 messages. SSLv3 is deprecated and most distributions have
disabled it, remove this option and rely only on the default checker
when ssl is enabled [0]
[0] https://docs.haproxy.org/2.8/configuration.html#5.2-check
Related-Bug: #2043812
Change-Id: Ia681679e24437832e1e23e7399e1a34da8ab54c5