Remove generated directories with 100s of files.

client/html/generated/html/interface/AudioNode.dart

Index: client/html/generated/html/interface/AudioNode.dart
diff --git a/client/html/generated/html/interface/AudioNode.dart b/client/html/generated/html/interface/AudioNode.dart
deleted file mode 100644
index 778a7ade2d406bafe4d7ff8bb2400a2cd0b70a6d..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/AudioNode.dart
+++ /dev/null
@@ -1,18 +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 AudioNode {
-
-  final AudioContext context;
-
-  final int numberOfInputs;
-
-  final int numberOfOutputs;
-
-  void connect(AudioNode destination, int output, int input);
-
-  void disconnect(int output);
-}