GitLab

We are deprecating attestation methods by CryptohomeClient.

BUG=b:158955123
TEST=unit_tests and browser_tests.

Change-Id: Ib7662537bce5f1b833de91ebfb189d5d71f8c3d0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2467638
Commit-Queue: Leo Lai <cylai@google.com>
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#821609}