RFR(XXS) 8201542: Remove unused _gc_timer field in GCMemoryManager

[yumin qi]

Looks good.

Thanks
Yumin

On Mon, Apr 30, 2018 at 8:32 AM, Zhengyu Gu <zgu at redhat.com> wrote:

> Please review this trivial cleanup to remove unused _gc_timer in
> GCMemoryManager.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8201542
> Webrev: http://cr.openjdk.java.net/~zgu/8201542/webrev.00/
>
> Test:
>   hotspot_servicebility on Linux x64 (fastdebug and release)
>
> Thanks,
>
> -Zhengyu
>