Hi bsrock40,
We see you're having issues with removing a particular Bluetooth accessory. Being able to control what is and isn't connected is certainly important. We'd like to help out.
Have you happened to install any new apps around the time of this appearing? If so, try removing the most recent app(s), and see if that affects things. We'll also want to have you try checking in Settings > General for either a 'Profiles' or 'Mobile Device Management' feature. If you see either option, tap on it, and see if there is a profile installed. If so, this may affect some functionality.
We also advise ensuring the device is up-to-date. The latest version at the moment is iOS 14.3. You can check the installed version at Settings > General > About. If you need to update, we'd advise backing up to iCloud or a computer ahead of time.
You may also try disconnecting Bluetooth from Control Center, and then turn it back on. You can fully turn off Bluetooth from Settings > Bluetooth, and then wait a moment and turn it back on.
Lastly, a restart of the iPhone can often help with some anomalies. You can try that with these steps: Restart your iPhone
Take care!