Revert of [heap] Improve size profiling for ArrayBuffer tracking (patchset #6 id:140001 of https://codereview.chromium.org/2210263002/ )

Reason for revert:
Tanks octane

Original issue's description:
> [heap] Improve size profiling for ArrayBuffer tracking
>
> Eagerly account for retained sizes during ArrayBuffer tracking. Following up on this,
> we can now do Scavenges if the amount of memory retained from new space is too large.
>
> BUG=chromium:621829
> R=jochen@chromium.org,hpayer@chromium.org
>
> Committed: https://crrev.com/28e13bd6a75c9467dae43043e7b741a1387d5252
> Cr-Commit-Position: refs/heads/master@{#38731}

TBR=jochen@chromium.org,hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:621829

Review-Url: https://codereview.chromium.org/2261513003
Cr-Commit-Position: refs/heads/master@{#38739}