Get rid of --use-repository-packages and --use-public-packages.

tools/testing/dart/test_progress.dart

 // Copyright (c) 2013, 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 test_progress;
 
 import "dart:async";
 import "dart:io";
 import "dart:io" as io;
 import "dart:convert" show JSON;
@@ skipping 244 matching lines @@
     'compiler',
     'runtime',
     'checked',
     'strong',
     'host_checked',
     'minified',
     'csp',
     'system',
     'vm_options',
     'use_sdk',
-    'use_repository_packages',
-    'use_public_packages',
     'builder_tag'
   ];
 
   IOSink _sink;
 
   void done(TestCase test) {
     var name = test.displayName;
     var configuration = {};
     for (var key in INTERESTED_CONFIGURATION_PARAMETERS) {
       configuration[key] = test.configuration[key];
@@ skipping 440 matching lines @@
       return new VerboseProgressIndicator(startTime);
     case 'status':
       return new ProgressIndicator(startTime);
     case 'buildbot':
       return new BuildbotProgressIndicator(startTime);
     default:
       assert(false);
       return null;
   }
 }