Revert "First step for modular output in fasta."

pkg/front_end/testcases/shaker/implicit_constructors.dart

Index: pkg/front_end/testcases/shaker/implicit_constructors.dart
diff --git a/pkg/front_end/testcases/shaker/implicit_constructors.dart b/pkg/front_end/testcases/shaker/implicit_constructors.dart
deleted file mode 100644
index 1c3bd887eb8b4dcee9d1a53b938247b0a3dcc6ab..0000000000000000000000000000000000000000
--- a/pkg/front_end/testcases/shaker/implicit_constructors.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2017, 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.md file.
-
-import 'lib/lib.dart';
-
-class D extends F {
-  D.x();
-}