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

This reverts commit 2d49aadbef12706f18e6c4dea583067d91bfc04a.
Revert "[maven-release-plugin] prepare release transmorph-3.1.3"

This reverts commit bc9a6c4de5e820b7707c13501b0e054000c69354.