Remove --harmony-async-await runtime flag

test/debugger/debugger.status

Index: test/debugger/debugger.status
diff --git a/test/debugger/debugger.status b/test/debugger/debugger.status
index d1d26f8d49362032d7c150c6f4502f7e13c67375..5a16190c3da23404f1dee3c3b82383adda48743c 100644
--- a/test/debugger/debugger.status
+++ b/test/debugger/debugger.status
@@ -57,11 +57,11 @@
 
   # Async function tests taking too long
   # https://bugs.chromium.org/p/v8/issues/detail?id=5411
-  'debug/harmony/async-debug-caught-exception-cases0': [SKIP],
-  'debug/harmony/async-debug-caught-exception-cases1': [SKIP],
-  'debug/harmony/async-debug-caught-exception-cases2': [SKIP],
-  'debug/harmony/async-debug-caught-exception-cases3': [SKIP],
-  'debug/harmony/async-function-debug-scopes': [SKIP],
+  'debug/es8/async-debug-caught-exception-cases0': [SKIP],
+  'debug/es8/async-debug-caught-exception-cases1': [SKIP],
+  'debug/es8/async-debug-caught-exception-cases2': [SKIP],
+  'debug/es8/async-debug-caught-exception-cases3': [SKIP],
+  'debug/es8/async-function-debug-scopes': [SKIP],
 }],  # 'gc_stress == True'
 
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