RFR: Cleanup allocation tracking in heuristics

[Roman Kennke]

Good

On Fri, Mar 2, 2018 at 12:40 PM, Aleksey Shipilev <shade at redhat.com> wrote:
> http://cr.openjdk.java.net/~shade/shenandoah/heuristics-bytes-allocated/webrev.01/
>
> This cleans up allocation tracking in heuristics. Most of the things are not used and bit-rotted
> over the last year. The one thing that is still important to us -- bytes allocated since last cycle
> -- is updated racily, and thus is unreliable.
>
> Testing: hotspot_gc_shenandoah
>
> Thanks,
> -Aleksey
>