Revert of Enable debug fission for Release build

Revert of Enable debug fission for Release build (patchset #1 id:1 of https://codereview.chromium.org/605623002/)

Reason for revert:
Speculatively reverting.  Suspect it may be cause of leaks on linux asan lsan bot:

http://build.chromium.org/p/chromium.memory/builders/Linux%20ASan%20LSan%20Tests%20%281%29/builds/6561

Original issue's description:
> Enable debug fission for Release build
>
> This enables debug fission for Release build. If the target compiler
> satisfies fission requirement, the fission is enabled for target no
> matter how old the host compiler is.
>
> BUG=None
> TEST=simple chrome for x64 platform passes with fission.
>
> Committed: https://crrev.com/d872dd066eb644f2d85e25429f55451cd2dd20d4
> Cr-Commit-Position: refs/heads/master@{#298925}

TBR=tansell@chromium.org,mithro@mithis.com,llozano@chromium.org,llozano@google.com,yunlian@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=None

Committed: https://crrev.com/fc10f0bc83a90138b7b59773c6d6c1d77102a9ec
Cr-Commit-Position: refs/heads/master@{#299000}

[maniscalco, 2014-10-09 22:45:52]

Created Revert of Enable debug fission for Release build

[commit-bot: I haz the power, 2014-10-09 22:47:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/649433002/1

[commit-bot: I haz the power, 2014-10-09 22:49:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-09 22:51:07]

Patchset 1 (id:??) landed as
https://crrev.com/fc10f0bc83a90138b7b59773c6d6c1d77102a9ec
Cr-Commit-Position: refs/heads/master@{#299000}