This reverts commit 5301cdc3.

Reason for revert: Failing on mips

Original change's description:
> [wasm] add 64 bit atomic ops to interpreter
> 
> R=​gdeepti@chromium.org
> BUG=v8:6532
> 
> Change-Id: I532bf67f1631c692e12f9b054b29601a57b76f05
> Reviewed-on: https://chromium-review.googlesource.com/1130635
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54365}

TBR=gdeepti@chromium.org,aseemgarg@chromium.org

Change-Id: Id56d3bb1228b38b6e2ad29876ea78542658e8310
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6532
Reviewed-on: https://chromium-review.googlesource.com/1132154Reviewed-by: Aseem Garg <aseemgarg@chromium.org>
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54366}