Remove generated directories with 100s of files.

client/html/generated/html/dartium/Storage.dart

Index: client/html/generated/html/dartium/Storage.dart
diff --git a/client/html/generated/html/dartium/Storage.dart b/client/html/generated/html/dartium/Storage.dart
deleted file mode 100644
index 0b2d0fabf1d8022dcf4a1bb2daa90fedcd980c9b..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/Storage.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-
-class _StorageImpl extends _DOMTypeBase implements Storage {
-  _StorageImpl._wrap(ptr) : super._wrap(ptr);
-
-  int get length() => _wrap(_ptr.length);
-
-  void clear() {
-    _ptr.clear();
-    return;
-  }
-
-  String getItem(String key) {
-    return _wrap(_ptr.getItem(_unwrap(key)));
-  }
-
-  String key(int index) {
-    return _wrap(_ptr.key(_unwrap(index)));
-  }
-
-  void removeItem(String key) {
-    _ptr.removeItem(_unwrap(key));
-    return;
-  }
-
-  void setItem(String key, String data) {
-    _ptr.setItem(_unwrap(key), _unwrap(data));
-    return;
-  }
-}