diff --git a/GUI/View/Sample/SampleEditorController.h b/GUI/View/Sample/SampleEditorController.h
index e2f47e229b08b149667029124d2ec7e29dc2b627..f7ec141abac6d919b3fa3ed41c473b3343232505 100644
--- a/GUI/View/Sample/SampleEditorController.h
+++ b/GUI/View/Sample/SampleEditorController.h
@@ -41,8 +41,6 @@ class SampleItem;
 //!
 //! Use this class to modify the sample model. It takes care of notifications.
 //! It operates on one SampleItem.
-//!
-//! Originally, it also supported undo/redo (never completed, withdrawn in release 22).
 
 class SampleEditorController : public QObject {
     Q_OBJECT