Revert "Handle metadata on nested function parameters."

tests/language/metadata_self_test.dart

Index: tests/language/metadata_self_test.dart
diff --git a/tests/language/metadata_self_test.dart b/tests/language/metadata_self_test.dart
deleted file mode 100644
index 434cc38a0a0c2cc3aa81953b34b4cbdb7cd8abee..0000000000000000000000000000000000000000
--- a/tests/language/metadata_self_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, 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.
-
-// Test that metadata refer to the annotated declaration.
-
-@Foo()
-class Foo {
-  const Foo();
-}
-
-main() {
-  Foo f = const Foo();
-}