Revert 189395 "Add a RELEASE_ASSERT to detect if crbug.com/38944..."
Revert 189395 "Add a RELEASE_ASSERT to detect if crbug.com/38944..."

This CL causes performance regression:
https://code.google.com/p/chromium/issues/detail?id=456182

> Add a RELEASE_ASSERT to detect if crbug.com/389445 happens or not
> 
> This RELEASE_ASSERT checks if the following scenario happens or not.
> 
> 1) DOMDataStore::containsWrapper returns false.
> 2) V8DOMWrapper::createWrapper triggers a V8 GC, which dispatches JS execution, which creates a wrapper for this DOM object.
> 3) DOMDataStore::containsWrapper returns true.
> 
> BUG=389445
> 
> Review URL: https://codereview.chromium.org/859133005

TBR=haraken@chromium.org

Review URL: https://codereview.chromium.org/944713002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@190507 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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