PPC: remove test excludes no longer required

test/cctest/cctest.status

 # Copyright 2011 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
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@@ skipping 387 matching lines @@
 }],  # 'arch == ppc64'
 
 ##############################################################################
 ['arch == ppc and simulator_run == True or arch == ppc64 and simulator_run == True', {
 
   # Pass but take too long with the simulator.
   'test-api/Threading1': [SKIP],
   'test-api/Threading2': [SKIP],
   'test-api/ExternalArrays': [SKIP],
 
-  # issues to be investigated based on latest uplevel
-  'test-run-machops/RunWord64EqualInBranchP': [SKIP],
-
   # will not pass until we agree/implement changes to serializce.cc
   'test-serialize/SerializeInternalReference': [SKIP],
 
 }],  # 'arch == ppc64 and simulator_run == True'
 ]