Remove dartc optimizing backend.

dart/compiler/javatests/com/google/dart/compiler/end2end/End2EndOptTests.java

Index: dart/compiler/javatests/com/google/dart/compiler/end2end/End2EndOptTests.java
diff --git a/dart/compiler/javatests/com/google/dart/compiler/end2end/End2EndOptTests.java b/dart/compiler/javatests/com/google/dart/compiler/end2end/End2EndOptTests.java
deleted file mode 100644
index 9b365374db4f2ce9a80e3c5a819d5256c5c995ba..0000000000000000000000000000000000000000
--- a/dart/compiler/javatests/com/google/dart/compiler/end2end/End2EndOptTests.java
+++ /dev/null
@@ -1,24 +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.end2end;
-
-import junit.extensions.TestSetup;
-import junit.framework.Test;
-import junit.framework.TestSuite;
-
-public class End2EndOptTests extends TestSetup {
-
-  public End2EndOptTests(TestSuite test) {
-    super(test);
-  }
-
-  public static Test suite() {
-    TestSuite suite = new TestSuite("Dart end-to-end test suite (optimized version).");
-
-    suite.addTestSuite(BasicOptTest.class);
-    suite.addTestSuite(MainMethodOptTest.class);
-    return new End2EndOptTests(suite);
-  }
-}