Revert "Oilpan: Add more asserts to Heap::collectGarbage"

Revert "Oilpan: Add more asserts to Heap::collectGarbage"

This reverts commit c030706815f2d55e9f04ffdef39854059f7b5448.

Reason for revert: broke heap unittests,

 http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan%20%28dbg%29/builds/9631/steps/blink_heap_unittests/logs/HeapTest.LazySweepingLargeObjectPages

R=haraken
BUG=420515
NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=190148

[sof, 2015-02-13 14:21:57]

Please take a look.

[sof, 2015-02-13 14:22:00]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-02-13 14:22:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/927513003/1

[haraken, 2015-02-13 14:34:44]

Thanks, LGTM.

[sof, 2015-02-13 15:12:17]

The CQ bit was unchecked by sigbjornf@opera.com

[sof, 2015-02-13 15:12:44]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-02-13 15:13:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/927513003/1

[commit-bot: I haz the power, 2015-02-13 15:15:45]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=190148