[maven-release-plugin] prepare release http_request-1.8
Revert "[maven-release-plugin] prepare release http_request-1.8"

This reverts commit 98d0b35b7f6721a20c628e973d21d1019018c4bf.
[maven-release-plugin] prepare release http_request-1.8
[maven-release-plugin] prepare for next development iteration