Ref T171, use callsign completer in history and matcher log

* "private slots" -> "private"
* UI connects as Qt::QueuedConnection

src/blackgui/components/aircraftpartshistory.h

@@ -39,11 +39,9 @@ namespace BlackGui
 
         private:
             QScopedPointer<Ui::CAircraftPartsHistory> ui;
-            QTimer m_timerCallsignUpdate { this };
             QTimer m_timerUpdateHistory { this };
             QTextDocument m_text { this };
             uint m_htmlHash = 0;
-            bool m_isBeingModified = false;
 
             //! Init
             void initGui();
@@ -55,18 +53,12 @@ namespace BlackGui
             bool partsHistoryEnabled() const;
 
         private:
-            //! Update the completer
-            void updateCallsignCompleter();
-
             //! Update parts history
             void updatePartsHistory();
 
             //! Callsign was entered
             void callsignEntered();
 
-            //! Callsign was modified
-            void callsignModified();
-
             //! When values changed elsewhere
             void valuesChanged();