- It was only used to parse old U2F data to webauthn credentials. We
only used the public key and keyhandle. This functiontionality was
reworked to `parseU2FRegistration`.
- Tests are already present, `Test_RemigrateU2FCredentials`.
Change all license headers to comply with REUSE specification.
Fix #16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>