Revert "Deflake one of TouchActionBrowserTest"

This reverts commit c32a3d1ec4331f10e0efbd5d979a833f8e1a57ce.

Reason for revert: introduced flake, see https://crbug.com/855979

Original change's description:
> Deflake one of TouchActionBrowserTest
> 
> Some of the TouchActionBrowserTests are flaky. I was recently told by
> sahel@ that setting speed_in_pixels_s to a very high number will ensure
> there is one GSU only and will prevent the flaky. This does work, at
> least locally. I have tried the test in this CL locally and it was
> flaky without this change. With this change, I have ran this test 50
> times without any failure.
> 
> This CL does that. Right now there are a few tests marked flaky, this
> CL enables one of them first. I will monitor the flakiness dashboard
> once this CL lands. If this does solve the problem, we will then enable
> more tests.
> 
> Bug: 833015
> Change-Id: I539703866094fb526e220c48aaf327836345b950
> Reviewed-on: https://chromium-review.googlesource.com/1101464
> Commit-Queue: Xida Chen <xidachen@chromium.org>
> Reviewed-by: Sahel Sharifymoghaddam <sahel@chromium.org>
> Reviewed-by: Timothy Dresser <tdresser@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#567692}

TBR=tdresser@chromium.org,xidachen@chromium.org,sahel@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 833015
Change-Id: I53852330fc0702b5e0c240afed40ef514c8a136f
Reviewed-on: https://chromium-review.googlesource.com/1113217
Reviewed-by: Darren Shen <shend@chromium.org>
Commit-Queue: Darren Shen <shend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569985}
1 file changed