Remove generated directories with 100s of files.

client/dom/generated/src/frog/IDBRequest.dart

Index: client/dom/generated/src/frog/IDBRequest.dart
diff --git a/client/dom/generated/src/frog/IDBRequest.dart b/client/dom/generated/src/frog/IDBRequest.dart
deleted file mode 100644
index 63700cf10b5e3ed1257c134408cabede15b8d468..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/frog/IDBRequest.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-
-class _IDBRequestJs extends _DOMTypeJs 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 _IDBAnyJs result;
-
-  final _IDBAnyJs source;
-
-  final _IDBTransactionJs transaction;
-
-  final String webkitErrorMessage;
-
-  void addEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-
-  bool dispatchEvent(_EventJs evt) native;
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-}