Delete proxy and total samples, which have bit-rotted.

samples/tests/samples/total/total_test.dart

Index: samples/tests/samples/total/total_test.dart
===================================================================
--- samples/tests/samples/total/total_test.dart	(revision 9011)
+++ samples/tests/samples/total/total_test.dart	(working copy)
@@ -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.
-
-#library('total_tests');
-
-#import('dart:html');
-#import('../../../../samples/total/client/TotalLib.dart');
-#import('../../../../lib/unittest/unittest.dart');
-#import('../../../../lib/unittest/html_config.dart');
-#source('../../../../samples/total/server/SYLKProducer.dart');
-#source('total_test_lib.dart');
-
-void main() {
-  useHtmlConfiguration();
-  totalTests();
-}