dart2js: Remove unused function in new emitter.

sdk/lib/_internal/compiler/implementation/js_emitter/program_builder.dart

 // Copyright (c) 2014, 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.
 
 library dart2js.js_emitter.program_builder;
 
 import 'model.dart';
 import '../common.dart';
 import '../js/js.dart' as js;
 
@@ skipping 143 matching lines @@
     JavaScriptConstantCompiler handler = backend.constants;
     ConstantValue initialValue = handler.getInitialValueFor(element).value;
     js.Expression code = _task.emitter.constantReference(initialValue);
     String name = namer.getNameOfGlobalField(element);
     bool isFinal = false;
     bool isLazy = false;
     return new StaticField(name, _registry.registerHolder(r'$'), code,
                            isFinal, isLazy);
   }
 
-  List<StaticField> _buildStaticLazilyInitializedFields(Fragment fragment) {
-    JavaScriptConstantCompiler handler = backend.constants;
-    List<VariableElement> lazyFields =
-        handler.getLazilyInitializedFieldsForEmission();
-    // TODO(floitsch): handle static lazy finals correctly with deferred
-    // libraries.
-    if (fragment != _registry.mainFragment) return const <StaticField>[];
-    throw new UnimplementedError("lazy statics");
-  }
-
   List<Library> _buildLibraries(Fragment fragment) {
     List<Library> libraries = new List<Library>(fragment.length);
     int count = 0;
     fragment.forEach((LibraryElement library, List<Element> elements) {
       libraries[count++] = _buildLibrary(library, elements);
     });
     return libraries;
   }
 
   // Note that a library-element may have multiple [Library]s, if it is split
@@ skipping 98 matching lines @@
     for (ConstantValue constantValue in constantValues) {
       assert(!_constants.containsKey(constantValue));
       String name = namer.constantName(constantValue);
       String constantObject = namer.globalObjectForConstant(constantValue);
       Holder holder = _registry.registerHolder(constantObject);
       Constant constant = new Constant(name, holder, constantValue);
       _constants[constantValue] = constant;
     };
   }
 }