Revert of Test262 roll

Revert of Test262 roll (patchset #9 id:160001 of https://codereview.chromium.org/1268553003/ )

Reason for revert:
[Sheriff] Lacks one test expectation for
http://build.chromium.org/p/client.v8/builders/V8%20Linux64/builds/4573
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim/builds/4516

64 bits only?

Original issue's description:
> Update to latest test262 from 2015-07-31
>
> Committed: https://crrev.com/722ad6923887d367f14588f5ccd6697b8684bd28
> Cr-Commit-Position: refs/heads/master@{#30052}

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

Committed: https://crrev.com/f18d47ddef64579da19346acf67c1dbd6ab71663
Cr-Commit-Position: refs/heads/master@{#30055}

[Michael Achenbach, 2015-08-07 06:41:15]

Created Revert of Test262 roll

[commit-bot: I haz the power, 2015-08-07 06:41:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1280903002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1280903002/1

[commit-bot: I haz the power, 2015-08-07 06:41:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-07 06:41:53]

Patchset 1 (id:??) landed as
https://crrev.com/f18d47ddef64579da19346acf67c1dbd6ab71663
Cr-Commit-Position: refs/heads/master@{#30055}

[Michael Achenbach, 2015-08-07 09:02:14]

FYI: Fixing gatekeeper now: https://codereview.chromium.org/1275323003/