Revert "Merge branch 'tzy' into NewFilePath"

wxr

2020-12-17 1a13c963a5fb8cad92bf03667e411f46d6a6a843

 HDL_ON/UI/UI2/2-Classification/RoomPageBLL.cs

@@ -35,7 +35,6 @@
                ReloadRoomName();
            };

            
            Action delAction = () => {
                this.RemoveFromParent();
                deleteAction?.Invoke();