Revert of [test262-es6] Update to 2011-06-29 (patchset #1 id:1 of https://codereview.chromium.org/1220793005/)

Reason for revert:
[Sheriff] Runner has some infra failures:
http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20debug/builds/4020/steps/Test262-es6%20-%20no%20variants/logs/stdio

Original issue's description:
> [test262-es6] Update to 2011-06-29
>
> This includes one harness fix but introduces a few new failures. No
> new bugs exposed though.
>
> BUG=N
> LOG=N
> R=littledan@chromium.org, adamk@chromium.org
>
> Committed: https://crrev.com/2e877628803f238dd33c3409413cd7778e36a2b6
> Cr-Commit-Position: refs/heads/master@{#29392}

TBR=littledan@chromium.org,adamk@chromium.org,arv@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=N

Review URL: https://codereview.chromium.org/1212163008

Cr-Commit-Position: refs/heads/master@{#29393}