Remove generated directories with 100s of files.

client/html/generated/html/dartium/AudioBuffer.dart

Index: client/html/generated/html/dartium/AudioBuffer.dart
diff --git a/client/html/generated/html/dartium/AudioBuffer.dart b/client/html/generated/html/dartium/AudioBuffer.dart
deleted file mode 100644
index 8d6e6edcbd91846da79899fe6886ddbbf5ff4140..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/AudioBuffer.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-
-class _AudioBufferImpl extends _DOMTypeBase implements AudioBuffer {
-  _AudioBufferImpl._wrap(ptr) : super._wrap(ptr);
-
-  num get duration() => _wrap(_ptr.duration);
-
-  num get gain() => _wrap(_ptr.gain);
-
-  void set gain(num value) { _ptr.gain = _unwrap(value); }
-
-  int get length() => _wrap(_ptr.length);
-
-  int get numberOfChannels() => _wrap(_ptr.numberOfChannels);
-
-  num get sampleRate() => _wrap(_ptr.sampleRate);
-
-  Float32Array getChannelData(int channelIndex) {
-    return _wrap(_ptr.getChannelData(_unwrap(channelIndex)));
-  }
-}