Remove DartIsolateStubGenerator.

compiler/java/com/google/dart/compiler/DartIsolateStubGeneratorCompilerConfiguration.java

Index: compiler/java/com/google/dart/compiler/DartIsolateStubGeneratorCompilerConfiguration.java
diff --git a/compiler/java/com/google/dart/compiler/DartIsolateStubGeneratorCompilerConfiguration.java b/compiler/java/com/google/dart/compiler/DartIsolateStubGeneratorCompilerConfiguration.java
deleted file mode 100644
index caa47adeef36cfb27d5dab07327ae6ceb6173f41..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/DartIsolateStubGeneratorCompilerConfiguration.java
+++ /dev/null
@@ -1,22 +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;
-
-import com.google.dart.compiler.CommandLineOptions.CompilerOptions;
-
-import java.io.FileNotFoundException;
-
-public class DartIsolateStubGeneratorCompilerConfiguration extends DefaultCompilerConfiguration {
-
-  public DartIsolateStubGeneratorCompilerConfiguration(CompilerOptions compilerOptions)
-      throws FileNotFoundException {
-    super(compilerOptions);
-  }
-
-  @Override
-  public boolean shouldWarnOnNoSuchType() {
-    return true;
-  }
-}