Remove generated directories with 100s of files.

client/html/generated/html/interface/Int32Array.dart

Index: client/html/generated/html/interface/Int32Array.dart
diff --git a/client/html/generated/html/interface/Int32Array.dart b/client/html/generated/html/interface/Int32Array.dart
deleted file mode 100644
index 51edbe69af997a67269fc6cab0a4c09673b9b357..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/Int32Array.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, 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.
-
-// WARNING: Do not edit - generated code.
-
-interface Int32Array extends ArrayBufferView, List<int> default _TypedArrayFactoryProvider {
-
-  Int32Array(int length);
-
-  Int32Array.fromList(List<int> list);
-
-  Int32Array.fromBuffer(ArrayBuffer buffer);
-
-  static final int BYTES_PER_ELEMENT = 4;
-
-  final int length;
-
-  void setElements(Object array, [int offset]);
-
-  Int32Array subarray(int start, [int end]);
-}