Revert of Update V8 DEPS.

Revert of Update V8 DEPS. (patchset #1 id:1 of https://codereview.chromium.org/1179703005/)

Reason for revert:
[Sheriff] gyp change breaks calling gyp on XP:
http://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%201/builds/2849

Original issue's description:
> Update V8 DEPS.
>
> Rolling v8/build/gyp to fdcd8bc10c935eff13b391644b01460593c46861
>
> Rolling v8/tools/clang to 4cc9c6714533a07ba02ca01ed04557f055820532
>
> TBR=machenbach@chromium.org
>
> Committed: https://crrev.com/6e7e5e833c8bddf7d6a97cd3c01f0afe5a882bd6
> Cr-Commit-Position: refs/heads/master@{#29059}

TBR=v8-autoroll@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/ce3b5350826b9453aa1081bba04a7c0efd58db46
Cr-Commit-Position: refs/heads/master@{#29060}

[Michael Achenbach, 2015-06-17 05:38:10]

Created Revert of Update V8 DEPS.

[commit-bot: I haz the power, 2015-06-17 05:38:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1180193003/1

[commit-bot: I haz the power, 2015-06-17 05:38:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-17 05:38:50]

Patchset 1 (id:??) landed as
https://crrev.com/ce3b5350826b9453aa1081bba04a7c0efd58db46
Cr-Commit-Position: refs/heads/master@{#29060}

[Michael Achenbach, 2015-06-17 08:57:58]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1190933002/ by machenbach@chromium.org.

The reason for reverting is: Retry with landmine..