Remove backends.

compiler/java/com/google/dart/compiler/backend/js/ast/NodeKind.java

Index: compiler/java/com/google/dart/compiler/backend/js/ast/NodeKind.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/ast/NodeKind.java b/compiler/java/com/google/dart/compiler/backend/js/ast/NodeKind.java
deleted file mode 100644
index 614e4bb3bd95653a9d69848ecb6e5fa977cc4503..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/js/ast/NodeKind.java
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2011, 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.
-
-package com.google.dart.compiler.backend.js.ast;
-
-public enum NodeKind {
-   ARRAY_ACCESS,
-   ARRAY,
-   BINARY_OP,
-   BLOCK,
-   BOOLEAN,
-   BREAK,
-   CASE,
-   CATCH,
-   CONDITIONAL,
-   CONTINUE,
-   DEBUGGER,
-   DEFAULT,
-   DO,
-   EMPTY,
-   EXPR_STMT,
-   FOR,
-   FOR_IN,
-   FUNCTION,
-   IF,
-   INVOKE,
-   LABEL,
-   NAME_REF,
-   NEW,
-   NULL,
-   NUMBER,
-   OBJECT,
-   PARAMETER,
-   POSTFIX_OP,
-   PREFIX_OP,
-   PROGRAM,
-   PROGRAM_FRAGMENT,
-   PROPERTY_INIT,
-   REGEXP,
-   RETURN,
-   STRING,
-   SWITCH,
-   THIS,
-   THROW,
-   TRY,
-   VARS,
-   VAR,
-   WHILE
-}