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Update these fairly old tests, removing code that's obsolete.

Try this change on bots and hopefully most if not all will stick.

R=akihiroota@chromium.org

Fixed: 754870, 622387, 892960, 894016, 833318
Change-Id: I345385f0c538346ea993f2a79a3196402857d020
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2582529Reviewed-by: Akihiro Ota <akihiroota@chromium.org>
Commit-Queue: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835669}