Remove generated directories with 100s of files.

client/html/generated/html/frog/PeerConnection.dart

Index: client/html/generated/html/frog/PeerConnection.dart
diff --git a/client/html/generated/html/frog/PeerConnection.dart b/client/html/generated/html/frog/PeerConnection.dart
deleted file mode 100644
index 6d498abb2c43a4677441d30f58d86fedb23fa97e..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/PeerConnection.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-
-class _PeerConnectionImpl implements PeerConnection native "*PeerConnection" {
-
-  static final int ACTIVE = 2;
-
-  static final int CLOSED = 3;
-
-  static final int NEGOTIATING = 1;
-
-  static final int NEW = 0;
-
-  final _MediaStreamListImpl localStreams;
-
-  EventListener onaddstream;
-
-  EventListener onconnecting;
-
-  EventListener onmessage;
-
-  EventListener onopen;
-
-  EventListener onremovestream;
-
-  EventListener onstatechange;
-
-  final int readyState;
-
-  final _MediaStreamListImpl remoteStreams;
-
-  void addEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-
-  void addStream(_MediaStreamImpl stream) native;
-
-  void close() native;
-
-  bool dispatchEvent(_EventImpl event) native;
-
-  void processSignalingMessage(String message) native;
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-
-  void removeStream(_MediaStreamImpl stream) native;
-
-  void send(String text) native;
-}