Delete stray comment in tests.

tests/language/regress_26668_test.dart

Index: tests/language/regress_26668_test.dart
diff --git a/tests/language/regress_26668_test.dart b/tests/language/regress_26668_test.dart
index ffadcc7968e3dc70c8d71e06354bb3a36ddd5f03..1b329aa4a1b31e8f56c2a8750ed0923e27b3a213 100644
--- a/tests/language/regress_26668_test.dart
+++ b/tests/language/regress_26668_test.dart
@@ -1,7 +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.
-// Tests that the VM does not crash on weird corner cases of class Math.
 
 import 'dart:async';