Mathieu Duponchelle authored Dec 17, 2018 and Tim-Philipp Müller committed Dec 18, 2018

The initial mission statement for this test was:

* demonstrate usage of the request-aux-* signals in rtpbin
* test the rtx elements

We have examples that serve the first use case, and better
(harnessed) tests for the second use case.

This test is slow and racy, it served its purpose but can now
be removed.

Fixes #533