Removed obsolete code

utils/template/utils.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.
-
-// Collection<T> supports most of the ES 5 Array methods, but it's missing
-// map and reduce.
-
-// TODO(jmesserly): we might want a version of this that return an iterable,
-// however JS, Python and Ruby versions are all eager.
-List map(Iterable source, mapper(source)) {
-  List result = new List();
-  if (source is List) {
-    List list = source; // TODO: shouldn't need this
-    result.length = list.length;
-    for (int i = 0; i < list.length; i++) {
-      result[i] = mapper(list[i]);
-    }
-  } else {
-    for (final item in source) {
-      result.add(mapper(item));
-    }
-  }
-  return result;
-}
-
-reduce(Iterable source, callback, [initialValue]) {
-  final i = source.iterator;
-
-  var current = initialValue;
-  if (current == null && i.moveNext()) {
-    current = i.current;
-  }
-  while (i.moveNext()) {
-    current = callback(current, i.current);
-  }
-  return current;
-}
-
-List zip(Iterable left, Iterable right, mapper(left, right)) {
-  List result = new List();
-  var x = left.iterator;
-  var y = right.iterator;
-  while (x.moveNext()) {
-    if (!y.moveNext()) {
-      throw new ArgumentError();
-    }
-    result.add(mapper(x.current, y.current));
-  }
-  if (y.moveNext()) {
-    throw new ArgumentError();
-  }
-  return result;
-}
-
-