Revert of Suppress data races in blink::Scheduler (patchset #1 id:1 of...

Revert of Suppress data races in blink::Scheduler (patchset #1 id:1 of https://codereview.chromium.org/895753003/)

Reason for revert:
https://crbug.com/456095 has been fixed

Original issue's description:
> Suppress data races in blink::Scheduler
>
> BUG=456095
> TBR=skyostil@chromium.org
>
> Committed: https://crrev.com/1f26d43e2b92f4325b01e7976218ad9a1012674b
> Cr-Commit-Position: refs/heads/master@{#315027}

TBR=skyostil@chromium.org,alexclarke@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=456095

Review URL: https://codereview.chromium.org/906323004

Cr-Commit-Position: refs/heads/master@{#315312}

build/sanitizers/tsan_suppressions.cc

@@ -322,9 +322,6 @@ char kTSanDefaultSuppressions[] =
 // https://crbug.com/455665
 "race:mojo::common::*::tick_clock\n"
 
-// https://crbug.com/456095
-"race:blink::Scheduler\n"
-
 // End of suppressions.
 ;  // Please keep this semicolon.