Оптимизировал CommonView

InstructorsAndTrainees/instructors/instructorsview.h

@@ -13,32 +13,13 @@ class InstructorsView: public CommonView
 public:
     InstructorsView(ConnectorToServer* connectorToServer, TypeView type, QWidget *parent = nullptr);
 
-protected:
-    enum ColumnsTreeInsructors{
-        clmn_Instructor = 0,
-        clmn_Login,
-        clmn_Password,
-        clmn_Administrator,
-        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 loadInstructorsFromDB();
-
-    void reSetHeadTreeWidget();
-
     void setCurrentInstructor(int id);
 };