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This CL removes unused variations along with the dead code they were
enabling.

Bug: 1124732
Change-Id: I729a2ed83e9652f74859477a6943a77b871e68b6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404344Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Matthias Körber <koerber@google.com>
Commit-Queue: Friedrich [CET] <fhorschig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806129}