diff --git a/src/libs/utils/treemodel.cpp b/src/libs/utils/treemodel.cpp
index 61b7ee6e173..48dd4ac1b06 100644
--- a/src/libs/utils/treemodel.cpp
+++ b/src/libs/utils/treemodel.cpp
@@ -944,11 +944,6 @@ TreeItem *BaseTreeModel::rootItem() const
     return m_root;
 }
 
-int BaseTreeModel::topLevelItemCount() const
-{
-    return m_root->childCount();
-}
-
 void BaseTreeModel::setRootItem(TreeItem *item)
 {
     QTC_ASSERT(item, return);
diff --git a/src/libs/utils/treemodel.h b/src/libs/utils/treemodel.h
index 300ace1a18e..0fdff46f921 100644
--- a/src/libs/utils/treemodel.h
+++ b/src/libs/utils/treemodel.h
@@ -207,7 +207,6 @@ protected:
     TreeItem *itemForIndex(const QModelIndex &) const;
     QModelIndex indexForItem(const TreeItem *needle) const;
 
-    int topLevelItemCount() const;
     int rowCount(const QModelIndex &idx = QModelIndex()) const override;
     int columnCount(const QModelIndex &idx) const override;
 
@@ -308,7 +307,6 @@ public:
     using BaseTreeModel::setHeader;
     using BaseTreeModel::setHeaderToolTip;
     using BaseTreeModel::takeItem;
-    using BaseTreeModel::topLevelItemCount;
 
     template <int Level, class Predicate>
     void forItemsAtLevel(const Predicate &pred) const {