Maintaining a working setup for the FIDO and admin app is a lot of work
and is redundant to the usbip runner provided as part of the Nitrokey 3
firmware. Therefore, this patch replaces the fido example with a much
simpler example that just sets up a dummy client responding to a vendor
command that requests random data.
This is sufficient for basic testing and getting started. For more
advanced use cases, the Nitrokey 3 runner should be used.
Fixes: https://github.com/trussed-dev/pc-usbip-runner/issues/31