Remove dartc optimizing backend.

dart/compiler/javatests/com/google/dart/compiler/backend/js/JsConstExprOptTest.java

Index: dart/compiler/javatests/com/google/dart/compiler/backend/js/JsConstExprOptTest.java
diff --git a/dart/compiler/javatests/com/google/dart/compiler/backend/js/JsConstExprOptTest.java b/dart/compiler/javatests/com/google/dart/compiler/backend/js/JsConstExprOptTest.java
deleted file mode 100644
index d2dce4973fd983b369140bf19d4fab1514f166d7..0000000000000000000000000000000000000000
--- a/dart/compiler/javatests/com/google/dart/compiler/backend/js/JsConstExprOptTest.java
+++ /dev/null
@@ -1,38 +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;
-
-import java.io.IOException;
-
-/**
- * Tests for binary expression optimizations.
- */
-public class JsConstExprOptTest extends ExprOptTest {
-
-  public void testConstantExprOpt() throws IOException {
-    String js = compileSingleUnit(getName());
-
-    {
-      String marker = findMarkerAtOccurrence(js, "_marker_0", "[\\n;]", 2);
-      assertEquals("_marker_0 = 50 * 2", marker);
-    }
-
-    {
-      String marker = findMarkerAtOccurrence(js, "_marker_1", "[\\n;]", 2);
-      assertEquals("_marker_1 = 10 + 5 * 2 + 5", marker);
-    }
-
-    {
-      String marker = findMarkerAtOccurrence(js, "_marker_2", "[\\n;]", 2);
-      assertEquals("_marker_2 = 5 + 5", marker);
-    }
-
-    // Can't bind constants that instantiate objects.
-    {
-      String marker = findMarkerAtOccurrence(js, "_marker_3", "[\\n;]", 2);
-      assertEquals("_marker_3 = Test_app4a54ba$A$Dart.C3$getter()", marker);
-    }
-  }
-}