Deprecated config options

[kri164]

prosodyctl check Checking config...

You have some deprecated options in the global section:
'legacy_ssl_ssl' -- instead, use 'c2s_direct_tls_ssl'
'legacy_ssl_ports' -- instead, use 'c2s_direct_tls_ports'
'use_libevent' -- instead, use 'network_backend = "event"'