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

samples/total/client/IndexedValue.dart

-// 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.
-
-// Utility class used for sorting spreadsheet columns
-class IndexedValue {
-  // Sort numbers, followed by non-blank strings, followed by blanks
-  static final int NUMBER = 0;
-  static final int STRING = 1;
-  static final int BLANK = 2;
-
-  int _class;
-  double _dValue;
-  int _index;
-  String _sValue;
-
-  int get index() => _index;
-
-  IndexedValue.blank(this._index) {
-    _class = BLANK;
-  }
-
-  IndexedValue.number(this._index, this._dValue) {
-    _class = NUMBER;
-  }
-
-  IndexedValue.string(this._index, this._sValue) {
-    _class = (_sValue == null || _sValue.length == 0) ? BLANK : STRING;
-  }
-
-  int compareTo(IndexedValue other) {
-    if (_class < other._class) {
-      return -1;
-    } else if (_class > other._class) {
-      return 1;
-    }
-
-    if (_class == NUMBER) {
-      return _dValue < other._dValue ? -1 : (_dValue > other._dValue ? 1 : 0);
-    } else if (_class == STRING) {
-      return StringUtils.compare(_sValue, other._sValue);
-    }
-    // All blanks are equal
-    return 0;
-  }
-}