Remove deprecated CollectionSink and Stream.pipeInto.

tests/lib/async/stream_controller_async_test.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.
 
 // Test the basic StreamController and StreamController.singleSubscription.
 library stream_controller_async_test;
 
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'dart:isolate';
@@ skipping 14 matching lines @@
     c.close();
   });
 
   test("StreamController.fold throws", () {
     StreamController c = new StreamController.broadcast();
     Stream stream = c.stream;
     stream.fold(0, (a,b) { throw "Fnyf!"; })
      .catchError(expectAsync1((e) { Expect.equals("Fnyf!", e.error); }));
     c.add(42);
   });
-
-  test("StreamController.pipeInto", () {
-    StreamController c = new StreamController.broadcast();
-    var list = <int>[];
-    Stream stream = c.stream;
-    stream.pipeInto(new CollectionSink<int>(list))
-     .whenComplete(expectAsync0(() {
-        Expect.listEquals(<int>[1,2,9,3,9], list);
-      }));
-    c.add(1);
-    c.add(2);
-    c.add(9);
-    c.add(3);
-    c.add(9);
-    c.close();
-  });
 }
 
 testSingleController() {
   test("Single-subscription StreamController.fold", () {
     StreamController c = new StreamController();
     Stream stream = c.stream;
     stream.fold(0, (a,b) => a + b)
     .then(expectAsync1((int v) { Expect.equals(42, v); }));
     c.add(10);
     c.add(32);
     c.close();
   });
 
   test("Single-subscription StreamController.fold throws", () {
     StreamController c = new StreamController();
     Stream stream = c.stream;
     stream.fold(0, (a,b) { throw "Fnyf!"; })
             .catchError(expectAsync1((e) { Expect.equals("Fnyf!", e.error); }));
     c.add(42);
   });
 
-  test("Single-subscription StreamController.pipeInto", () {
-    StreamController c = new StreamController();
-    var list = <int>[];
-    Stream stream = c.stream;
-    stream.pipeInto(new CollectionSink<int>(list))
-     .whenComplete(expectAsync0(() {
-        Expect.listEquals(<int>[1,2,9,3,9], list);
-      }));
-    c.add(1);
-    c.add(2);
-    c.add(9);
-    c.add(3);
-    c.add(9);
-    c.close();
-  });
-
   test("Single-subscription StreamController subscription changes", () {
     StreamController c = new StreamController();
     EventSink sink = c.sink;
     Stream stream = c.stream;
     int counter = 0;
     var subscription;
     subscription = stream.listen((data) {
       counter += data;
       Expect.throws(() => stream.listen(null), (e) => e is StateError);
       subscription.cancel();
@@ skipping 353 matching lines @@
   testFuture("fold", (s, act) => s.fold(0, (a,b) => act(b)));
 }
 
 main() {
   testController();
   testSingleController();
   testExtraMethods();
   testPause();
   testRethrow();
 }