Remove the timeout for downloading packages.

lib/src/io.dart

Index: lib/src/io.dart
diff --git a/lib/src/io.dart b/lib/src/io.dart
index d24ede0203bd1b4c4aaebdd722e5bd904515ce3e..116dc11ecd01a0973a34eeebf14bc3df28dc1ddf 100644
--- a/lib/src/io.dart
+++ b/lib/src/io.dart
@@ -829,47 +829,6 @@ _doProcess(Function fn, String executable, List<String> args,
       environment: environment);
 }
 
-/// Wraps [input], an asynchronous network operation to provide a timeout.
-///
-/// If [input] completes before [milliseconds] have passed, then the return
-/// value completes in the same way. However, if [milliseconds] pass before
-/// [input] has completed, it completes with a [TimeoutException] with
-/// [description] (which should be a fragment describing the action that timed
-/// out).
-///
-/// [url] is the URL being accessed asynchronously.
-///
-/// Note that timing out will not cancel the asynchronous operation behind
-/// [input].
-Future timeout(Future input, int milliseconds, Uri url, String description) {
-  // TODO(nwiez): Replace this with [Future.timeout].
-  var completer = new Completer();
-  var duration = new Duration(milliseconds: milliseconds);
-  var timer = new Timer(duration, () {
-    // Include the duration ourselves in the message instead of passing it to
-    // TimeoutException since we show nicer output.
-    var message = 'Timed out after ${niceDuration(duration)} while '
-                  '$description.';
-
-    if (url.host == "pub.dartlang.org" ||
-        url.host == "storage.googleapis.com") {
-      message += "\nThis is likely a transient error. Please try again later.";
-    }
-
-    completer.completeError(new TimeoutException(message), new Chain.current());
-  });
-  input.then((value) {
-    if (completer.isCompleted) return;
-    timer.cancel();
-    completer.complete(value);
-  }).catchError((e, stackTrace) {
-    if (completer.isCompleted) return;
-    timer.cancel();
-    completer.completeError(e, stackTrace);
-  });
-  return completer.future;
-}
-
 /// Creates a temporary directory and passes its path to [fn].
 ///
 /// Once the [Future] returned by [fn] completes, the temporary directory and