Make the sample tests run using the standard test configuration

samples/tests/samples/testcfg.py

Index: samples/tests/samples/testcfg.py
diff --git a/samples/tests/samples/testcfg.py b/samples/tests/samples/testcfg.py
index 1c950622a0a8214785bd220466cf71a2410bdafe..b7d3e13f3c4fda7a9130ac676a6d6cbe167d9853 100644
--- a/samples/tests/samples/testcfg.py
+++ b/samples/tests/samples/testcfg.py
@@ -2,34 +2,7 @@
 # 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.
 
-import os
-
-from testing import test_configuration, test_case
-
-class SamplesTestConfiguration(test_configuration.StandardTestConfiguration):
-  def __init__(self, context, root):
-    super(SamplesTestConfiguration, self).__init__(context, root)
-
-  def ListTests(self, current_path, path, mode, arch):
-    tests = []
-    src_dir = os.path.join(self.root[:-7], "src")
-    for root, dirs, files in os.walk(src_dir):
-      ignore_dirs = [d for d in dirs if d.startswith('.')]
-      for d in ignore_dirs:
-        dirs.remove(d)
-      for f in [x for x in files if self.IsTest(x)]:
-        test_path = current_path + [ f[:-5] ]  # Remove .dart suffix.
-        if not self.Contains(path, test_path):
-          continue
-        tests.append(test_case.StandardTestCase(self.context,
-                                              test_path,
-                                              os.path.join(root, f),
-                                              mode,
-                                              arch))
-    return tests
-
-  def IsTest(self, name):
-    return name.endswith('_test.dart')
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return SamplesTestConfiguration(context, root)
+  return test_configuration.StandardTestConfiguration(context, root)