Revert of Update V8 to version 5.0.60.

Revert of Update V8 to version 5.0.60. (patchset #1 id:1 of https://codereview.chromium.org/1719203002/ )

Reason for revert:
Broke Win compile:

FAILED: C:\b\depot_tools\python276_bin\python.exe gyp-win-tool action-wrapper environment.x86 v8_snapshot_target_run_mksnapshot_3dd7b77762a753f6730b945160370894..rsp ..\..\v8\tools\gyp
FAILED: C:\b\depot_tools\python276_bin\python.exe gyp-win-tool action-wrapper environment.x86 v8_external_snapshot_target_run_mksnapshot__external__93bfc5871b63718af434b4cbb478e06a..rsp ..\..\v8\tools\gyp
ninja: build stopped: subcommand failed.


Original issue's description:
> Update V8 to version 5.0.60.
> 
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/a91392f8..f1990dd3
> 
> Please follow these instructions for assigning/CC'ing issues:
> https://github.com/v8/v8/wiki/Triaging%20issues
> 
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
> This only works with a Google account.
> 
> TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelheim@chromium.org
> 
> Committed: https://crrev.com/dd748df1ecdea0475ed018c0e5096651f4af0ed8
> Cr-Commit-Position: refs/heads/master@{#376788}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangguo@chromium.org,v8-autoroll@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

[imcheng (use chromium acct), 2016-02-22 21:09:38]

Created Revert of Update V8 to version 5.0.60.

[commit-bot: I haz the power, 2016-02-22 21:11:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1720153002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1720153002/1

[commit-bot: I haz the power, 2016-02-22 21:11:39]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-02-22 21:11:40]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[imcheng (use chromium acct), 2016-02-22 21:13:19]

Please disregard. Created another revert patch with my @chromium.org account.