Not all packages in this repo are correctly labeled as 0.2.16 in the 0.2.16 tag. Several report as 0.2.15.

Revert "rqt_robot_plugins: 0.2.16-0 in 'hydro/release.yaml' [bloom]"

This reverts commit 068d2896097cf803324ff13f585c076bd61d199d.