Revert of [wasm] Fix bounds check for zero initial memory. (patchset #11 id:200001 of https://codereview.chromium.org/2416543002/ )

Reason for revert:
Reverting because of failure on V8 Linux64 GC Stress

http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/builds/8572

Original issue's description:
> [wasm] Fix bounds check for zero initial memory.
>
> Currently when memory size references are updated with zero initial memory during GrowMemory/Relocation of Instance objects, the bounds check does not take into account the size of memtype.
>
> R=titzer@chromium.org, bradnelson@chromium.org
>
> Committed: https://crrev.com/70416a2b360c0d993cffb48284b143d484d1e290
> Cr-Commit-Position: refs/heads/master@{#40326}

TBR=bradnelson@chromium.org,titzer@chromium.org,bradnelson@google.com,mtrofin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2416393002
Cr-Commit-Position: refs/heads/master@{#40328}