Hello,
How to delete (qload,qsave) at SaveLoadUI ?
(Game does not use (qload,qsave) )

It's not possible to disable them outright, but you can hide the option to quick save/load on the SaveLoadUI and text printer.

but you can hide the option to quick save/load on the SaveLoadUI
Thank you for reply but quick save disable at SaveLoadUI not work.
Should we fix at save saveLoadMenu.cs?

There's no quick save panel in SaveLoadUI, so I'm not sure what you mean. It's possible to hide any section of the SaveLoadUI (without removing any of the required dependencies) but you will need to go through several objects and adjust their values (disable image, set object size to 0, remove SetActive from On Click() etc.)