Make the sample tests run using the standard test configuration

samples/tests/dartc/testcfg.py

Index: samples/tests/dartc/testcfg.py
diff --git a/samples/tests/dartc/testcfg.py b/samples/tests/dartc/testcfg.py
deleted file mode 100644
index bfdd65c2b12b130b8de817840c22fab63a08acf9..0000000000000000000000000000000000000000
--- a/samples/tests/dartc/testcfg.py
+++ /dev/null
@@ -1,17 +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.
-
-from testing import test_configuration
-
-def GetConfiguration(context, root):
-  return SampleCompilationTestConfiguration(context, root)
-
-
-class  SampleCompilationTestConfiguration(test_configuration.CompilationTestConfiguration):
- def __init__(self, context, root):
-    super(SampleCompilationTestConfiguration, self).__init__(context, root)
-
- def SourceDirs(self):
-   """ Returns a list of directories to scan for files to compile """
-   return [ 'chat', 'clock', 'socket' ]