RFR: 8198433: Remove WhiteBox extension point

[Thomas Schatzl]

Hi,

On Mon, 2018-02-26 at 12:05 +0100, 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/
> 
> 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.

  is good.

Thomas