Remove generated directories with 100s of files.

client/html/generated/html/frog/IDBRequest.dart

Index: client/html/generated/html/frog/IDBRequest.dart
diff --git a/client/html/generated/html/frog/IDBRequest.dart b/client/html/generated/html/frog/IDBRequest.dart
deleted file mode 100644
index 13c3ef7dfd9c06279775807bc8e1d7e6251ba66f..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/IDBRequest.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-
-class _IDBRequestImpl implements IDBRequest native "*IDBRequest" {
-
-  static final int DONE = 2;
-
-  static final int LOADING = 1;
-
-  final int errorCode;
-
-  EventListener onerror;
-
-  EventListener onsuccess;
-
-  final int readyState;
-
-  final _IDBAnyImpl result;
-
-  final _IDBAnyImpl source;
-
-  final _IDBTransactionImpl transaction;
-
-  final String webkitErrorMessage;
-
-  void addEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-
-  bool dispatchEvent(_EventImpl evt) native;
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-}