Remove support for session id based session resumption #11157
Merged
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As discussed, this change will be going into 11.x instead of 10.x, replacing PR #11155 .
As discussed in the email, since session id bases session resumption is barely used anymore (0.02% of the traffic on our production boxes), and we removed the session share plugin that shares session ids across boxes in a colo, I'm removing the support for session id based session resumption.
Also added some new autests, and fixed up the documentation.