RFR: 8150421: Delete experimental G1UseConcMarkReferenceProcessing

[Jon Masamitsu]

Looks good.

Jon

On 2/25/2016 3:22 PM, Kim Barrett wrote:
> Please review this small cleanup to remove an experimental command
> line option that has long since served its purpose.
>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8150421
>
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8150421/webrev.00/
>