[graphics/digikam] core/libs/widgets/combo: revert

Git commit 370997dd649c486bfce7e256d4e0da5e0184c9fc by Gilles Caulier.
Committed on 23/07/2026 at 09:59.
Pushed by cgilles into branch 'master'.

revert

M  +0    -1    core/libs/widgets/combo/squeezedcombobox.h

https://invent.kde.org/graphics/digikam/-/commit/370997dd649c486bfce7e256d4e0da5e0184c9fc

diff --git a/core/libs/widgets/combo/squeezedcombobox.h b/core/libs/widgets/combo/squeezedcombobox.h
index f707df92cd..9fa1343105 100644
--- a/core/libs/widgets/combo/squeezedcombobox.h
+++ b/core/libs/widgets/combo/squeezedcombobox.h
@@ -153,7 +153,6 @@ private:
                        const QString& text,
                        const QVariant& userData = QVariant());
     void    insertItems(int index, const QStringList& list);
-    void    insertSeparator(int index);
     void    addItem(const QString& text);
     void    addItem(const QIcon& icon,
                     const QString& text,