[calamares] Remove unused method from progresstreemodel

src/calamares/progresstree/ProgressTreeModel.cpp

@@ -175,53 +175,3 @@ ProgressTreeModel::setupModelData()
         m_rootItem->appendChild( new ViewStepItem( step, m_rootItem ) );
     }
 }
-
-
-QModelIndex
-ProgressTreeModel::indexFromItem( ProgressTreeItem* item )
-{
-    if ( !item || !item->parent() )
-    {
-        return QModelIndex();
-    }
-
-    // Reconstructs a QModelIndex from a ProgressTreeItem that is somewhere in the tree.
-    // Traverses the item to the root node, then rebuilds the qmodelindices from there
-    // back down; each int is the row of that item in the parent.
-    /**
-     * In this diagram, if the item is G, childIndexList will contain [0, 2, 0]
-     *
-     *    A
-     *      D
-     *      E
-     *      F
-     *        G
-     *        H
-     *    B
-     *    C
-     *
-     **/
-    QList< int > childIndexList;
-    ProgressTreeItem* curItem = item;
-    while ( curItem != m_rootItem )
-    {
-        int row = curItem->row();  //relative to its parent
-        if ( row < 0 )  // something went wrong, bail
-        {
-            return QModelIndex();
-        }
-
-        childIndexList << row;
-
-        curItem = curItem->parent();
-    }
-
-    // Now we rebuild the QModelIndex we need
-    QModelIndex idx;
-    for ( int i = childIndexList.size() - 1; i >= 0; i-- )
-    {
-        idx = index( childIndexList[ i ], 0, idx );
-    }
-
-    return idx;
-}

src/calamares/progresstree/ProgressTreeModel.h

@@ -52,7 +52,6 @@ public:
 
 private:
     void setupModelData();
-    QModelIndex indexFromItem( ProgressTreeItem* item );
 
     ProgressTreeRoot* m_rootItem;
 };