Remove backends.

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

Index: compiler/java/com/google/dart/compiler/backend/js/ast/JsIf.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/ast/JsIf.java b/compiler/java/com/google/dart/compiler/backend/js/ast/JsIf.java
deleted file mode 100644
index 478538235ab74d4197c2b7b3526ff55e1c7fd039..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/js/ast/JsIf.java
+++ /dev/null
@@ -1,65 +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 a JavaScript if statement.
- */
-public final class JsIf extends JsStatement {
-
-  private JsExpression ifExpr;
-  private JsStatement thenStmt;
-  private JsStatement elseStmt;
-
-  public JsIf() {
-  }
-
-  public JsIf(JsExpression ifExpr, JsStatement thenStmt, JsStatement elseStmt) {
-    this.ifExpr = ifExpr;
-    this.thenStmt = thenStmt;
-    this.elseStmt = elseStmt;
-  }
-
-  public JsStatement getElseStmt() {
-    return elseStmt;
-  }
-
-  public JsExpression getIfExpr() {
-    return ifExpr;
-  }
-
-  public JsStatement getThenStmt() {
-    return thenStmt;
-  }
-
-  public void setElseStmt(JsStatement elseStmt) {
-    this.elseStmt = elseStmt;
-  }
-
-  public void setIfExpr(JsExpression ifExpr) {
-    this.ifExpr = ifExpr;
-  }
-
-  public void setThenStmt(JsStatement thenStmt) {
-    this.thenStmt = thenStmt;
-  }
-
-  @Override
-  public void traverse(JsVisitor v, JsContext ctx) {
-    if (v.visit(this, ctx)) {
-      ifExpr = v.accept(ifExpr);
-      thenStmt = v.accept(thenStmt);
-      if (elseStmt != null) {
-        elseStmt = v.accept(elseStmt);
-      }
-    }
-    v.endVisit(this, ctx);
-  }
-
-  @Override
-  public NodeKind getKind() {
-    return NodeKind.IF;
-  }
-}