RFR (trivial) 8209792: Remove ClassLoaderDataGraph::keep_alive_cld_do

[Zhengyu Gu]

Looks good and trivial.

Thanks,

-Zhengyu

On 08/21/2018 10:23 AM, coleen.phillimore at oracle.com wrote:
> Summary: unnecessary
> 
> Built without it, ran runThese -jck tests (with lots of class unloading).
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/8209792.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8209792
> 
> Thanks,
> Coleen