This reverts commit 9c67143f.

Reason for revert: Potential cause of mac gpu failures for the auto roller - https://ci.chromium.org/p/chromium/builders/luci.chromium.try/mac_optional_gpu_tests_rel/9158

Original change's description:
> [heap] Introduce backing store counters on Heap
> 
> - Update those counters from space
> - Add fast path for move memory
> 
> Bug: chromium:845409
> Change-Id: Icd72e551df2422a635801fb4e31588073f81544e
> Reviewed-on: https://chromium-review.googlesource.com/1219707
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55798}

TBR=ulan@chromium.org,mlippautz@chromium.org

Change-Id: Iaa0d375d84f1c559a13dea9b9f1b7f6907cbd768
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:845409
Reviewed-on: https://chromium-review.googlesource.com/1220293Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55807}