Оптимизировал CommonView

InstructorsAndTrainees/trainees/traineesview.h

@@ -13,34 +13,13 @@ class TraineesView: public CommonView
 public:
     TraineesView(ConnectorToServer* connectorToServer, TypeView type, QWidget *parent = nullptr);
 
-protected:
-    enum ColumnsTreeTrainees{        
-        clmn_Trainee = 0,
-        clmn_Login,
-        clmn_Password,
-        clmn_Class,
-        clmn_Computer,
-        clmn_IP_address,
-        clmn_Archived,
-        clmn_Logged,
-        clmn_ID,
-        clmn_count
-    };
-
-public:
-    void resizeEvent(QResizeEvent *event) override;
-
 public Q_SLOTS:
     //Слот обработки сигнала необходимости обновления интерфейса
     void slot_NeedUpdateUI(bool treeInstructor, bool treeTrainee);
 
 protected:
     virtual void updateButtons(){};
-    void preparationTreeWidget();
     void loadTraineesFromDB();
-
-    void reSetHeadTreeWidget();
-
     void setCurrentGroup(int id);
     void setCurrentTrainee(int id);
 };