Remove the now unnecessary flag from test files

tests/language/initializing_formal_promotion_test.dart

Index: tests/language/initializing_formal_promotion_test.dart
diff --git a/tests/language/initializing_formal_promotion_test.dart b/tests/language/initializing_formal_promotion_test.dart
index 89ec79ecc833e02d352a45e724837e25e53b11d3..822d2d21537b6a9dcc54942aaa027ce092afd8f7 100644
--- a/tests/language/initializing_formal_promotion_test.dart
+++ b/tests/language/initializing_formal_promotion_test.dart
@@ -1,9 +1,6 @@
 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
-//
-// DartOptions=--initializing-formal-access
-// VMOptions=--initializing-formal-access
 
 import "package:expect/expect.dart";