[test] Reenable test for "future" that no longer fails.

R=machenbach@chromium.org
BUG=v8:7106

Change-Id: I89ff17393848c88ffd885af3fec8b6703c75d073
Reviewed-on: https://chromium-review.googlesource.com/781942Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49543}

test/mjsunit/mjsunit.status

@@ -651,7 +651,6 @@
 ['variant == future', {
   # BUG(v8:7106).
   'regress/typed-array-lifetime': [SKIP],
-  'regress/regress-2249': [SKIP],
 }],  # variant == future
 
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