Remove generated directories with 100s of files.

client/html/generated/html/dartium/AudioListener.dart

Index: client/html/generated/html/dartium/AudioListener.dart
diff --git a/client/html/generated/html/dartium/AudioListener.dart b/client/html/generated/html/dartium/AudioListener.dart
deleted file mode 100644
index 3d98807ad99ad83e42b44b0a52eff5b437057da0..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/AudioListener.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-
-class _AudioListenerImpl extends _DOMTypeBase implements AudioListener {
-  _AudioListenerImpl._wrap(ptr) : super._wrap(ptr);
-
-  num get dopplerFactor() => _wrap(_ptr.dopplerFactor);
-
-  void set dopplerFactor(num value) { _ptr.dopplerFactor = _unwrap(value); }
-
-  num get speedOfSound() => _wrap(_ptr.speedOfSound);
-
-  void set speedOfSound(num value) { _ptr.speedOfSound = _unwrap(value); }
-
-  void setOrientation(num x, num y, num z, num xUp, num yUp, num zUp) {
-    _ptr.setOrientation(_unwrap(x), _unwrap(y), _unwrap(z), _unwrap(xUp), _unwrap(yUp), _unwrap(zUp));
-    return;
-  }
-
-  void setPosition(num x, num y, num z) {
-    _ptr.setPosition(_unwrap(x), _unwrap(y), _unwrap(z));
-    return;
-  }
-
-  void setVelocity(num x, num y, num z) {
-    _ptr.setVelocity(_unwrap(x), _unwrap(y), _unwrap(z));
-    return;
-  }
-}