Disable JMX service

[tnozicka]

JMX service is deprecated in ScyllaDB and not used in any of the flows with the Operator either.

It exposes 2 insecure ports: 7199 on 127.0.0.1 and random port on 0.0.0.0. Removing it helps us harden ScyllaDB security.

We should also not run multiple service in one container so this helps with container split as well.

[tnozicka]

nodetool still relies on this :(

kubectl logs -c e2e-drain-scylla -f pod/basic-8gn5q-us-east-1-us-east-1a-1
nodetool: Failed to connect to '127.0.0.1:7199' - ConnectException: 'Connection refused (Connection refused)'.

[tnozicka]

split the random port into https://github.com/scylladb/scylla-operator/issues/1778