[PRQ#73104] Deletion Request for ros2-iron

MarsSeed [1] filed a deletion request for ros2-iron [2]: Unused. Broken as per last maintainer's comment from July 2024. ROS2 Iron is EOL. [a] [a]: http/://docs.ros.org/en/jazzy/Releases/End-of-Life.html [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros2-iron/