- merge in of WL7592 introduces new binlog events for Previous_gtids
  and Anonyomus_gtid, thos can be filtered away in mosts tests.
- part2, remove usage of show_binlog_events2.inc and instead use show_binlog_events.inc
  directly, this cause the "Server_id" column to also be masked by a #.
- remove mysql-test/include/show_binlog_events2.inc since it's now unused
  and unmaintained.