Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/frog/IDBIndex.dart
diff --git a/client/dom/generated/src/frog/IDBIndex.dart b/client/dom/generated/src/frog/IDBIndex.dart
deleted file mode 100644
index 5170cc9142d124935cd3bfcc44e243c00219fa16..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/frog/IDBIndex.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-
-class _IDBIndexJs extends _DOMTypeJs implements IDBIndex native "*IDBIndex" {
-
-  final String keyPath;
-
-  final bool multiEntry;
-
-  final String name;
-
-  final _IDBObjectStoreJs objectStore;
-
-  final bool unique;
-
-  _IDBRequestJs count([var key_OR_range = null]) native;
-
-  _IDBRequestJs getObject(_IDBKeyJs key) native '''return this.get(key);''';
-
-  _IDBRequestJs getKey(_IDBKeyJs key) native;
-
-  _IDBRequestJs openCursor([_IDBKeyRangeJs range = null, int direction = null]) native;
-
-  _IDBRequestJs openKeyCursor([_IDBKeyRangeJs range = null, int direction = null]) native;
-}