Revert of [heap] Reland decrease large object limit for regular heap objects.

Revert of [heap] Reland decrease large object limit for regular heap objects. (patchset #3 id:40001 of https://codereview.chromium.org/1401173003/ )

Reason for revert:
Still one failing test on Windows.

Original issue's description:
> [heap] Reland decrease large object limit for regular heap objects.
>
> BUG=
>
> Committed: https://crrev.com/9b91bf3a630b5382080ba1d7f9f3e88de3de8a95
> Cr-Commit-Position: refs/heads/master@{#31228}

TBR=mlippautz@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/1f98ef6ec823f9a9e0804c9cc21fd7d9d09218f7
Cr-Commit-Position: refs/heads/master@{#31239}

[Hannes Payer (out of office), 2015-10-13 13:46:44]

Created Revert of [heap] Reland decrease large object limit for regular heap
objects.

[commit-bot: I haz the power, 2015-10-13 13:47:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1395653003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1395653003/1

[commit-bot: I haz the power, 2015-10-13 13:47:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-13 13:47:34]

Patchset 1 (id:??) landed as
https://crrev.com/1f98ef6ec823f9a9e0804c9cc21fd7d9d09218f7
Cr-Commit-Position: refs/heads/master@{#31239}