amq.rabbitmq.event remains after plugin disabling

[dade-hms]

If you decide at some point you don't need that plugin anymore and disable it, the exchange amq.rabbitmq.event remains in rabbitmq and it's impossible to remove it:

2018-08-17 12:25:40.940 [info] <0.22789.0> Stopping RabbitMQ applications and their dependencies in the following order:
    rabbitmq_event_exchange
2018-08-17 12:25:40.941 [info] <0.22789.0> Stopping application 'rabbitmq_event_exchange'
2018-08-17 12:25:40.941 [info] <0.31.0> Application rabbitmq_event_exchange exited with reason: stopped
2018-08-17 12:25:40.951 [info] <0.22789.0> Plugins changed; disabled [rabbitmq_event_exchange]
2018-08-17 12:25:56.056 [warning] <0.22801.0> Delete exchange error: deletion of system exchange 'amq.rabbitmq.event' in vhost '/' not allowed

[michaelklishin]

The code confirms your findings ;)