RFR: 8198433: Remove WhiteBox extension point

[Erik Helin]

On 02/26/2018 12:05 PM, Stefan Johansson wrote:
> Hi,
> 
> Please review this small change to remove a now unused extension point.
> 
> Links
> JBS: https://bugs.openjdk.java.net/browse/JDK-8198433
> Webrev: http://cr.openjdk.java.net/~sjohanss/8198433/00/

Looks good, Reviewed.

Thanks,
Erik

> Summary
> The WhiteBox testing API extension support made it possible to add 
> specialized native code for some test methods. This is no longer needed 
> since the internal code using it has been removed.
> 
> Testing
> Built locally and through Mach5.
> 
> Thanks,
> Stefan