Revert of cc: Test BeginMainFrame values come from BeginImplFrame. (patchset #3 id...

Revert of cc: Test BeginMainFrame values come from BeginImplFrame. (patchset #3 id:40001 of https://codereview.chromium.org/1104193003/)

Reason for revert:
Dr.Memory bot report use-after-free error on newly added test.

BUG=493852

Original issue's description:
> cc: Test BeginMainFrame values come from BeginImplFrame.
>
> The frame time in the BeginFrameArgs sent to BeginMainFrame should match a
> value from a BeginImplFrame. However there is not a 1:1 relantionship, when the
> main thread is slow, there many be multiple impl frames.
>
> DEPS=http://crrev.com/787763006
> BUG=346230
> R=brianderson,enne
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/3785ebac79741ebc1428c9c50a8cd4bc92f0e924
> Cr-Commit-Position: refs/heads/master@{#331933}

TBR=brianderson@chromium.org,enne@chromium.org,mithro@mithis.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=346230

Review URL: https://codereview.chromium.org/1162763002

Cr-Commit-Position: refs/heads/master@{#332037}