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

This reverts commit 7dce27ef2437b4f6ea49b5d8abe8c94659aafc3d.
Revert "[maven-release-plugin] prepare release json-parent-0.9.2"

This reverts commit bcb40e1a4ebf63037619ff8d42083ca8f93ebc06.