Remove generated directories with 100s of files.

client/html/generated/html/frog/IDBDatabase.dart

Index: client/html/generated/html/frog/IDBDatabase.dart
diff --git a/client/html/generated/html/frog/IDBDatabase.dart b/client/html/generated/html/frog/IDBDatabase.dart
deleted file mode 100644
index 9016e3589abc7872b057c9d67404d04b4d2219eb..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/IDBDatabase.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-
-class _IDBDatabaseImpl implements IDBDatabase native "*IDBDatabase" {
-
-  final String name;
-
-  final List<String> objectStoreNames;
-
-  EventListener onabort;
-
-  EventListener onerror;
-
-  EventListener onversionchange;
-
-  final String version;
-
-  void addEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-
-  void close() native;
-
-  _IDBObjectStoreImpl createObjectStore(String name) native;
-
-  void deleteObjectStore(String name) native;
-
-  bool dispatchEvent(_EventImpl evt) native;
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) native;
-
-  _IDBVersionChangeRequestImpl setVersion(String version) native;
-
-  _IDBTransactionImpl transaction(var storeName_OR_storeNames, [int mode = null]) native;
-}