minor comment fix

Refs #71995

src/callmodel.h

@@ -154,7 +154,7 @@ Q_SIGNALS:
    void callAdded               ( Call* call               , Call* parent );
    ///Emitted when a new Video::Renderer is available
    void rendererAdded           ( Call* call, Video::Renderer* renderer   );
-   ///Emitted when a new Video::Renderer is available
+   ///Emitted when a new Video::Renderer is removed
    void rendererRemoved         ( Call* call, Video::Renderer* renderer   );
 };
 Q_DECLARE_METATYPE(CallModel*)