Remove --harmony-async-await runtime flag

test/mjsunit/es8/async-await-resolve-new.js

Index: test/mjsunit/es8/async-await-resolve-new.js
diff --git a/test/mjsunit/harmony/async-await-resolve-new.js b/test/mjsunit/es8/async-await-resolve-new.js
similarity index 88%
rename from test/mjsunit/harmony/async-await-resolve-new.js
rename to test/mjsunit/es8/async-await-resolve-new.js
index 0711c95873e95b9d32d5418b47d5fdda4dec4d64..f64a35a14fb8050bdeb61365d918e7129ff4f81b 100644
--- a/test/mjsunit/harmony/async-await-resolve-new.js
+++ b/test/mjsunit/es8/async-await-resolve-new.js
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --harmony-async-await
-
 var resolved = Promise.resolve();
 
 assertTrue((async() => resolved)() !== resolved);