RFR: 8144992: Remove OopIterateClosure::idempotent

[Per Liden]

Looks good!

/Per

On 06/25/2018 03:58 PM, Stefan Karlsson wrote:
> Hi all,
> 
> Please review this patch to remove the OopIterateClosure::idempotent() 
> function.
> 
> http://cr.openjdk.java.net/~stefank/8144992/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8144992
> 
> There's no closure that overrides idempotent() anymore, so this patch 
> removes the function an all usages.
> 
> Thanks,
> StefanK