@maxxtc Scraped info is kept in /opt/retropie/config/all/emulationstation/gamelists (also available via file shares at \\retropie\configs\all\emulationstation\gamelists, each system has its own gamelist.xml that stores this info.
If you wish to remove this info, then exit Emulationstation and delete the gamelist.xml files with the wrong info. Starting Emulationstation again will re-create those files from scratch, but without any of the info you scraped.