Remove the "pkgbuild" step on the bots.

tools/testing/dart/test_configurations.dart

 // Copyright (c) 2012, 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_configurations;
 
 import "dart:async";
 import 'dart:convert';
 import 'dart:io';
 import "dart:math" as math;
@@ skipping 191 matching lines @@
         } else if (conf['compiler'] == 'none' &&
             conf['runtime'] == 'vm' &&
             key == 'vm') {
           // vm tests contain both cc tests (added here) and dart tests (added
           // in [TEST_SUITE_DIRECTORIES]).
           testSuites.add(new VMTestSuite(conf));
         } else if (conf['analyzer']) {
           if (key == 'analyze_library') {
             testSuites.add(new AnalyzeLibraryTestSuite(conf));
           }
-        } else if (conf['compiler'] == 'none' &&
-            conf['runtime'] == 'vm' &&
-            key == 'pkgbuild') {
-          if (!conf['use_sdk']) {
-            print("Running the 'pkgbuild' test suite requires "
-                "passing the '--use-sdk' to test.py");
-            exit(1);
-          }
-          testSuites.add(
-              new PkgBuildTestSuite(conf, 'pkgbuild', 'pkg/pkgbuild.status'));
         }
       }
     }
   }
 
   void allTestsFinished() {
     for (var conf in configurations) {
       if (conf.containsKey('_servers_')) {
         conf['_servers_'].stopServers();
       }
@@ skipping 86 matching lines @@
       maxBrowserProcesses,
       startTime,
       testSuites,
       eventListener,
       allTestsFinished,
       verbose,
       recordingPath,
       recordingOutputPath,
       adbDevicePool);
 }