Use checked-in .package file for building and testing

runtime/dart-runtime.gyp

 # 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.
 
 {
   'includes': [
     'tools/gyp/runtime-configurations.gypi',
     'vm/vm.gypi',
     'observatory/observatory.gypi',
     'bin/bin.gypi',
@@ skipping 168 matching lines @@
       'dependencies': ['<@(libdart_deps)'],
       'sources': [
         'vm/libdart_dependency_helper.cc',
       ],
     },
     # Targets coming from dart/dart.gyp.
     {
       'target_name': 'runtime_all',
       'type': 'none',
       'dependencies': [
-        '../pkg/pkg.gyp:pkg_packages',
         'sample_extension',
       ],
     },
     {
       'target_name': 'sample_extension',
       'type': 'shared_library',
       'dependencies': [
         'dart',
       ],
       'include_dirs': [
@@ skipping 25 matching lines @@
         }],
         ['OS=="linux"', {
           'cflags': [
             '-fPIC',
           ],
         }],
       ],
     },
   ],
 }