Drop Artery UDP based on Aeron

Artery UDP based on Aeron (hard to deploy, little used, one extra dimension in hard to stabilize remoting (and everything above like cluster, persistence etc) tests)

_Originally posted by @jrudolph in https://github.com/mdedetrich/akka-apache-project/discussions/8#discussioncomment-3904101_

The design blog: https://akka.io/blog/article/2016/12/02/streams-in-artery & https://akka.io/blog/article/2016/12/05/aeron-in-artery

Start by locating the Artery UDP and Aeron implementation and tracing its references through remoting, cluster, persistence, and related tests. Review the linked design blog posts and determine the full removal scope; done means the unused transport and its test and configuration dependencies are removed without breaking the remaining distributed-system features.

Written by the indexing model from the issue text.