[PRQ#67609] Deletion Request for ros-melodic-ecl-concepts

a821 [1] filed a deletion request for ros-melodic-ecl-concepts [2]: Cleanup of broken, abandoned and dead EOL ROS melodic packages. [1] https://aur.archlinux.org/account/a821/ [2] https://aur.archlinux.org/pkgbase/ros-melodic-ecl-concepts/