Remove generated directories with 100s of files.

client/html/generated/html/dartium/AudioBufferSourceNode.dart

Index: client/html/generated/html/dartium/AudioBufferSourceNode.dart
diff --git a/client/html/generated/html/dartium/AudioBufferSourceNode.dart b/client/html/generated/html/dartium/AudioBufferSourceNode.dart
deleted file mode 100644
index 4b81933fe68bb6adf3d6984241301aa0487e9739..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/AudioBufferSourceNode.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-
-class _AudioBufferSourceNodeImpl extends _AudioSourceNodeImpl implements AudioBufferSourceNode {
-  _AudioBufferSourceNodeImpl._wrap(ptr) : super._wrap(ptr);
-
-  AudioBuffer get buffer() => _wrap(_ptr.buffer);
-
-  void set buffer(AudioBuffer value) { _ptr.buffer = _unwrap(value); }
-
-  AudioGain get gain() => _wrap(_ptr.gain);
-
-  bool get loop() => _wrap(_ptr.loop);
-
-  void set loop(bool value) { _ptr.loop = _unwrap(value); }
-
-  bool get looping() => _wrap(_ptr.looping);
-
-  void set looping(bool value) { _ptr.looping = _unwrap(value); }
-
-  AudioParam get playbackRate() => _wrap(_ptr.playbackRate);
-
-  void noteGrainOn(num when, num grainOffset, num grainDuration) {
-    _ptr.noteGrainOn(_unwrap(when), _unwrap(grainOffset), _unwrap(grainDuration));
-    return;
-  }
-
-  void noteOff(num when) {
-    _ptr.noteOff(_unwrap(when));
-    return;
-  }
-
-  void noteOn(num when) {
-    _ptr.noteOn(_unwrap(when));
-    return;
-  }
-}