By default max_quic_connections is a noop.
By default max_quic_connections is a noop.

The design change simplifies the logic, as we are no longer
required to enforce `max_quic_connections` being smaller than
`num_connections`, which is something not easy to enforce
considering the fact that they can appear in the configuration file
in any order.

h2o/h2o,devnexen/h2o,h2o/h2o,devnexen/h2o,h2o/h2o,yannick/h2o,devnexen/h2o,devnexen/h2o,cwyang/h2o,h2o/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,cwyang/h2o,yannick/h2o,h2o/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,yannick/h2o,devnexen/h2o,cwyang/h2o,yannick/h2o,devnexen/h2o,cwyang/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,cwyang/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,h2o/h2o,cwyang/h2o,devnexen/h2o