Remove generated directories with 100s of files.

client/html/generated/html/dartium/AudioNode.dart

Index: client/html/generated/html/dartium/AudioNode.dart
diff --git a/client/html/generated/html/dartium/AudioNode.dart b/client/html/generated/html/dartium/AudioNode.dart
deleted file mode 100644
index 5af747405786afb45e23419264e7e3ced95df9d8..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/AudioNode.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-
-class _AudioNodeImpl extends _DOMTypeBase implements AudioNode {
-  _AudioNodeImpl._wrap(ptr) : super._wrap(ptr);
-
-  AudioContext get context() => _wrap(_ptr.context);
-
-  int get numberOfInputs() => _wrap(_ptr.numberOfInputs);
-
-  int get numberOfOutputs() => _wrap(_ptr.numberOfOutputs);
-
-  void connect(AudioNode destination, int output, int input) {
-    _ptr.connect(_unwrap(destination), _unwrap(output), _unwrap(input));
-    return;
-  }
-
-  void disconnect(int output) {
-    _ptr.disconnect(_unwrap(output));
-    return;
-  }
-}