Remove --crankshaft flag from the test infrastructure.

tools/test-wrapper-gypbuild.py

Index: tools/test-wrapper-gypbuild.py
diff --git a/tools/test-wrapper-gypbuild.py b/tools/test-wrapper-gypbuild.py
index e7012d909bd66f4a1521d475f6065f5ff0b584b4..d99d055e5010e28bd0adae4347e9ea5800041f33 100755
--- a/tools/test-wrapper-gypbuild.py
+++ b/tools/test-wrapper-gypbuild.py
@@ -112,9 +112,6 @@ def BuildOptions():
   result.add_option("--nostress",
                     help="Don't run crankshaft --always-opt --stress-op test",
                     default=False, action="store_true")
-  result.add_option("--crankshaft",
-                    help="Run with the --crankshaft flag",
-                    default=False, action="store_true")
   result.add_option("--shard-count",
                     help="Split testsuites into this number of shards",
                     default=1, type="int")
@@ -199,8 +196,6 @@ def PassOnOptions(options):
     result += ['--stress-only']
   if options.nostress:
     result += ['--nostress']
-  if options.crankshaft:
-    result += ['--crankshaft']
   if options.shard_count != 1:
     result += ['--shard-count=%s' % options.shard_count]
   if options.shard_run != 1: