Remove backends.

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

Index: compiler/java/com/google/dart/compiler/backend/js/ast/JsCase.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/ast/JsCase.java b/compiler/java/com/google/dart/compiler/backend/js/ast/JsCase.java
deleted file mode 100644
index 43d2fc412306d14462a7eb824b3f36819899991c..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/js/ast/JsCase.java
+++ /dev/null
@@ -1,39 +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;
-
-/**
- * Represents the JavaScript case statement.
- */
-public final class JsCase extends JsSwitchMember {
-
-  private JsExpression caseExpr;
-
-  public JsCase() {
-    super();
-  }
-
-  public JsExpression getCaseExpr() {
-    return caseExpr;
-  }
-
-  public void setCaseExpr(JsExpression caseExpr) {
-    this.caseExpr = caseExpr;
-  }
-
-  @Override
-  public void traverse(JsVisitor v, JsContext ctx) {
-    if (v.visit(this, ctx)) {
-      caseExpr = v.accept(caseExpr);
-      v.acceptWithInsertRemove(stmts);
-    }
-    v.endVisit(this, ctx);
-  }
-
-  @Override
-  public NodeKind getKind() {
-    return NodeKind.CASE;
-  }
-}