[interpreter] Enable tests that no longer fail.

The compilation pipeline is correctly guarding against accidental
tier-ups by now, the tests in question should no longer fail.

R=yangguo@chromium.org
BUG=v8:4961
LOG=n

Review-Url: https://codereview.chromium.org/1938983002
Cr-Commit-Position: refs/heads/master@{#35934}

test/mjsunit/mjsunit.status

@@ -449,12 +449,6 @@
   # TODO(oth,4680): failures from the bots.
   'ignition/elided-instruction': [PASS, NO_IGNITION],
   'regress/regress-269': [PASS, NO_IGNITION],
-
-   # TODO(yangguo,4961): issues with the compiler pipeline.
-  'es6/typedarray-copywithin': [PASS, NO_IGNITION],
-  'es6/block-conflicts': [PASS, NO_IGNITION],
-  'es6/block-conflicts-sloppy': [PASS, NO_IGNITION],
-  'mul-exhaustive-part10': [PASS, NO_IGNITION],
 }],  # 'gc_stress == True'
 
 ##############################################################################
@@ -951,11 +945,6 @@
   # TODO(oth,4680): failures from the bots.
   'ignition/elided-instruction': [SKIP],
   'regress/regress-269': [SKIP],
-   # TODO(yangguo,4961): issues with the compiler pipeline.
-  'es6/typedarray-copywithin': [SKIP],
-  'es6/block-conflicts': [SKIP],
-  'es6/block-conflicts-sloppy': [SKIP],
-  'mul-exhaustive-part10': [SKIP],
 }],  # (ignition or ignition_turbofan) and gc_stress == True
 
 ['ignition == False and ignition_turbofan == False', {