Revert of Provide accessor for object internal properties that doesn't require debugger to be active

Revert of Provide accessor for object internal properties that doesn't require debugger to be active (patchset #3 id:40001 of https://codereview.chromium.org/1126103006/)

Reason for revert:
GC mole issues: https://chromegw.corp.google.com/i/client.v8/builders/V8%20Linux%20-%20gcmole/builds/1950/steps/GCMole%20ia32/logs/stdio

Original issue's description:
> Provide accessor for object internal properties that doesn't require debugger to be active
>
> Some of the DevTools' clients need to inspect JS objects without enabling debugger. This CL allows to inspect object's internal properties without enabling debugger and instantiating debug context.
>
> Note that now debug context can be created lazily if v8::Debug::GetDebugContext is called when there is no debug listener. This is fragile and has already resulted in some subtle error. I'm going to fix that in a separate CL.
>
> BUG=chromium:481845
> LOG=Y
>
> Committed: https://crrev.com/bdeb0de88c8cf5f2c78f261b45314138f525110d
> Cr-Commit-Position: refs/heads/master@{#28362}

TBR=pfeldman@chromium.org,kozyatinskiy@chromium.org,yurys@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:481845
Committed: https://crrev.com/396236bfa0ba78ad5ca97229e0f6817f573c8202
Cr-Commit-Position: refs/heads/master@{#28365}

[Yang, 2015-05-12 13:03:32]

Created Revert of Provide accessor for object internal properties that doesn't
require debugger to be active

[commit-bot: I haz the power, 2015-05-12 13:03:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1133243002/1

[commit-bot: I haz the power, 2015-05-12 13:04:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-12 13:04:16]

Patchset 1 (id:??) landed as
https://crrev.com/396236bfa0ba78ad5ca97229e0f6817f573c8202
Cr-Commit-Position: refs/heads/master@{#28365}