How to remove the letters under the information label?

How to remove the letters under the information icon:

Turn on the phone, and you can see the text in the lower left corner when you lock the screen. After entering the mobile phone, open the setting interface and select the desktop and wallpaper. Then select the screen lock signature option in the open interface. Open the editing interface and select to delete these words. Click OK. Open the phone lock screen interface again, and you can see that the text in the lower left corner is no longer displayed.