Remove --harmony-async-await runtime flag

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

Index: test/mjsunit/harmony/async-await-resolve-new.js
diff --git a/test/mjsunit/harmony/async-await-resolve-new.js b/test/mjsunit/harmony/async-await-resolve-new.js
deleted file mode 100644
index 0711c95873e95b9d32d5418b47d5fdda4dec4d64..0000000000000000000000000000000000000000
--- a/test/mjsunit/harmony/async-await-resolve-new.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2016 the V8 project authors. All rights reserved.
-// 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);