Deleting an app’s data from the iOS Keychain, or resetting the Keychain entirely

I installed an app that stores a persistent identifier in the iOS keychain, even after uninstalling and reinstalling it. This really bugs me. Is there a way to delete said app's data from the Keychain, or worst-case resetting the entire iOS Keychain, without resetting the device completely? **Note**: I'm not talking about the iCloud Keychain, but the on-device keychain that apps can store small bits of data in.