Revert of [wasm][asm.js] Disable success messages for asm.js (patchset #2 id:20001 of https://codereview.chromium.org/2628703003/ )

Reason for revert:
Trigger flaky test.

Original issue's description:
> [wasm][asm.js] Disable success messages for asm.js
>
> These interfere with layout tests.
>
> BUG=v8:4203
> R=titzer@chromium.org,jochen@chromium.org
>
> Review-Url: https://codereview.chromium.org/2628703003
> Cr-Commit-Position: refs/heads/master@{#42241}
> Committed: https://chromium.googlesource.com/v8/v8/+/9e60e7ac365d45f3211314f1ecff395f418de770

TBR=jochen@chromium.org,titzer@chromium.org,bradnelson@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4203

Review-Url: https://codereview.chromium.org/2629033003
Cr-Commit-Position: refs/heads/master@{#42254}