Hi @David Deutsch - Thanks for reaching out, and engaging the MS Q&A community.
If you're using Logic Apps Standard, you might be able to locate the state history in the storage you connected. However, even if the state history is located and successfully cleared manually, there may be other, indirect consequences so I wouldn't really recommend going this route though. If all you need is the list of all files, why not use the List files in folder or the List files in root folder actions?