Alan Parra 57508a9e58 Address U2F sunset TODOs (#17030) ...

Address TODOs, add deprecation warnings and remove as many U2F code references
as possible.

Existing behavior is kept unaltered: it's still possible to inform Teleport of
old U2F AppIDs and U2F configurations are still silently converted to WebAuthn.
There's no reason to break that, so we don't.

Most server-side references to SecondFactorU2F are removed, but client-side
references remain: this makes it possible to interop newer clients with old
clusters (something else may break, but hopefully not this part).

Closes #10375.

2022-10-05 13:13:09 +00:00

..

constants.go

Address U2F sunset TODOs (#17030)

2022-10-05 13:13:09 +00:00