Revert "Skip mjsunit/turboshaft/simple on numfuzz until flake is solved"

This reverts commit c56edd3e.

Reason for revert: should be fixed now

Original change's description:
> Skip mjsunit/turboshaft/simple on numfuzz until flake is solved
>
> NOTRY=true
>
> Bug: v8:12826
> Change-Id: I08be2980f92c69504290bb6152e48595e6a6c9aa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3629540
> Auto-Submit: Almothana Athamneh <almuthanna@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80369}

Bug: v8:12826
Change-Id: I615c682447df58bf9ae7acd9e4429b3a55697d8a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3707593
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81220}

test/mjsunit/mjsunit.status

@@ -1106,9 +1106,6 @@
     # BUG(v8:11656) Skipped until we make progress on NumFuzz.
     'baseline/test-osr': [SKIP],
 
-    # BUG(v8:12826) Skipped until we remove flakes on NumFuzz.
-    'turboshaft/simple': [SKIP],
-
     # BUG(v8:12842) Skipped until we remove flakes on NumFuzz.
     'compiler/regress-1224277': [SKIP],
     'regress/regress-1220974': [SKIP],