InstrumentListModel::onInstrumentNameChanged rm const_cast

GUI/View/Instrument/InstrumentListModel.cpp

@@ -177,6 +177,6 @@ QModelIndex InstrumentListModel::addNewInstrument()
 void InstrumentListModel::onInstrumentNameChanged(const InstrumentItem* instrument)
 {
     const auto instruments = m_ec->instrumentModel()->instrumentItems();
-    if (const auto row = instruments.indexOf(const_cast<InstrumentItem*>(instrument)); row != -1)
+    if (const auto row = instruments.indexOf(instrument); row != -1)
         emit dataChanged(index(row, 0), index(row, 0));
 }