If you no longer want to use your device to authenticate using the PingID mobile app, you'll need to unpair your device. You can do this directly from the PingID app on your smartphone.
Open the PingID app on the device that you want to unpair.
You should make sure your device has access to the Internet and is not offline before unpairing.
Tap the settings wheel on the top right of the app and then tap Unpair Device. You'll now see a confirmation message.
Tap Unpair. The device is no longer paired, and you will no longer be able to use it for authentication.