Revert 159861 "Implement new Blink IDL attribute [SetReference]"

> Implement new Blink IDL attribute [SetReference]
> 
> SetReference is a new Blink IDL attribute which can be used to specify dependency from a wrapper to another. This is implemented by calling v8::Isolate::SetReference on minor GC prologues. This has a lower overhead compared to old technique using SetHiddenValueTo.
> 
> BUG=307341
> 
> Review URL: https://codereview.chromium.org/26792002

BUG=309378
TBR=kouhei@chromium.org

Review URL: https://codereview.chromium.org/30733002

git-svn-id: svn://svn.chromium.org/blink/trunk@160017 bbb929c8-8fbe-4397-9dbb-9b2b20218538