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

This reverts commit e8ddc199d2e0d2d5eb88f599545d302daa361460.
Revert "[maven-release-plugin] prepare release deegree-3.2.2"

This reverts commit b4ec70552b9cd00fa5078bdcd211d57d9f2974e7.