Consolidate analyzer dependencies.

pkg/front_end/lib/src/fasta/ast_kind.dart

Index: pkg/front_end/lib/src/fasta/ast_kind.dart
diff --git a/pkg/front_end/lib/src/fasta/ast_kind.dart b/pkg/front_end/lib/src/fasta/ast_kind.dart
deleted file mode 100644
index e636942b96757e51e73afef04161d0f2f7adf58f..0000000000000000000000000000000000000000
--- a/pkg/front_end/lib/src/fasta/ast_kind.dart
+++ /dev/null
@@ -1,10 +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.
-
-library fasta.ast_kind;
-
-enum AstKind {
-  Analyzer,
-  Kernel,
-}