fido: enable WebAuthnUseNativeWinApi and WebAuthnProxyCryptotoken

(Merge into M73.)

This turns on both features by default. They are slated to launch fully
via Finch in M72.

Also removes the obsolete flag for testing the Windows WebAuthn API
integration with an incompatible API version.

Bug: 897741,898718,927519
Change-Id: I90b6d68331e74befb807aa7bc18e72ed253dc779
Reviewed-on: https://chromium-review.googlesource.com/c/1435760
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: Kim Paulhamus <kpaulhamus@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#626281}(cherry picked from commit fd071e57e384f6ae8bdc0b17c4cdf5c4bd0fcb78)
Reviewed-on: https://chromium-review.googlesource.com/c/1452656
Reviewed-by: Adam Langley <agl@chromium.org>
Cr-Commit-Position: refs/branch-heads/3683@{#172}
Cr-Branched-From: e51029943e0a38dd794b73caaf6373d5496ae783-refs/heads/master@{#625896}
5 files changed