Revert of Turn on stack use-after-return detection in non-official ASan builds.

Revert of Turn on stack use-after-return detection in non-official ASan builds. (patchset #5 id:70003 of https://codereview.chromium.org/760503002/)

Reason for revert:
This broke some layout tests, see http://crbug.com/438499

Original issue's description:
> Turn on stack use-after-return detection in non-official ASan builds.
>
> BUG=390117
> R=scherkus@chromium.org
> TBR=earthdok@chromium.org,thakis@chromium.org
>
> Committed: https://crrev.com/136dc0bf75f9be7ae86c336005279b6dde4dee46
> Cr-Commit-Position: refs/heads/master@{#306429}

TBR=earthdok@chromium.org,thakis@chromium.org,scherkus@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=390117
Committed: https://crrev.com/ec036d3de01dd6c809baad7558ffbb4986fa1822
Cr-Commit-Position: refs/heads/master@{#306618}

[Alexander Potapenko, 2014-12-03 16:21:45]

Created Revert of Turn on stack use-after-return detection in non-official ASan
builds.

[commit-bot: I haz the power, 2014-12-03 16:22:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/774483004/1

[commit-bot: I haz the power, 2014-12-03 16:23:17]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-03 16:24:20]

Patchset 1 (id:??) landed as
https://crrev.com/ec036d3de01dd6c809baad7558ffbb4986fa1822
Cr-Commit-Position: refs/heads/master@{#306618}