Correct and GC unrecognized flags from our tests.

tests/standalone/no_support_coverage_test.dart

Index: tests/standalone/no_support_coverage_test.dart
diff --git a/tests/standalone/no_support_coverage_test.dart b/tests/standalone/no_support_coverage_test.dart
deleted file mode 100644
index 7bbf602d765dcf416fc6f030ddd794e47f9c5d5f..0000000000000000000000000000000000000000
--- a/tests/standalone/no_support_coverage_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// 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.
-
-// VMOptions=--no-support_coverage
-
-main() {
-  print("Okay");
-}