This reverts commit eb65f35e.

Reason for revert: Broke jetstream benchmark on android.

BUG=chromium:750828

Original change's description:
> [wasm] redirect wasm calls to js functions through a GCed table
> 
> With this patch, rather than embedding the JSReceiver address directly
> in the WasmToJS wrappers, we put that in a fixed array with global handle
> scope and instead embed the location of the handle and the index in the
> wrapper. This ensures that the wrapper doesn't need to be patched if the
> GC kicks in. This is needed to get the WASM code off the GCed heap.
> 
> R=​mtrofin@chromium.org
> 
> Bug: 
> Change-Id: Ie5a77a78cdecec51b04f702c63b8e4285e6a2d8d
> Reviewed-on: https://chromium-review.googlesource.com/581682
> Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46884}

TBR=mtrofin@chromium.org,aseemgarg@google.com,aseemgarg@chromium.org,clemensh@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I26f49ee0a1fe73cc5d8852ded87b56638be39ebf
Reviewed-on: https://chromium-review.googlesource.com/596268
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47059}