Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit 923eff0701eed598b70ef6fcee21a6c736e92a3f.
Revert "[maven-release-plugin] prepare release barchart-archon-2.4.1"

This reverts commit d07a683f8ba8f8128c24c2fdddece88a42506ddf.