Revert of Update Test262 to 5/30

Revert of Update Test262 to 5/30 (patchset #4 id:60001 of https://codereview.chromium.org/1136553008/)

Reason for revert:
[Sheriff] Still lots of breakages on some builders. E.g. http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap/builds/3313

Original issue's description:
> Update Test262 to 5/30
>
> This updates the test runner to run all tests in both sloppy
> and strict mode.
>
> It also marks the test in the status file as failing in
> sloppy mode even if all it does is marking the test as
> [PASS, FAIL]. A future CL will have to validate that the
> tests pass and fail in the correct mode.
>
> Committed: https://crrev.com/d869f4a4801d4ef6868c266c07f9e29d2e29cba5
> Cr-Commit-Position: refs/heads/master@{#28879}

TBR=rossberg@chromium.org,arv@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/67b169199e06a486e7b663c7758f81995ddc6593
Cr-Commit-Position: refs/heads/master@{#28890}

[Michael Achenbach, 2015-06-10 06:36:27]

Created Revert of Update Test262 to 5/30

[commit-bot: I haz the power, 2015-06-10 06:36:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1173933002/1

[commit-bot: I haz the power, 2015-06-10 06:36:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-10 06:37:07]

Patchset 1 (id:??) landed as
https://crrev.com/67b169199e06a486e7b663c7758f81995ddc6593
Cr-Commit-Position: refs/heads/master@{#28890}