Make browser "sometest" like a regular test run by test.dart/py instead of

tools/testing/perf_testing/smoketest/benchmarklib.dart

Index: tools/testing/perf_testing/smoketest/benchmarklib.dart
===================================================================
--- tools/testing/perf_testing/smoketest/benchmarklib.dart	(revision 3211)
+++ tools/testing/perf_testing/smoketest/benchmarklib.dart	(working copy)
@@ -1,13 +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.
-
-#library("benchmarklib");
-
-#import('dart:coreimpl');
-#import('dart:json');
-#import('dart:html');
-
-#import('Smoketest.dart');
-#source('BenchmarkBase.dart');
-