Remove of Update and Delete Button from Custom Table

[BaijunathS]

I want to remove the OOB Update and Delete button from my custom table .

in the form view of the custom table there are no button configured. But i could not able to remove or disable these buttons.
I check the sys_ui_action table but these buttons are not present for my custom table.

[BaijunathS]

Can we do this without using ACLs? I want these buttons to be hidden or disabled for all users, including admins. No user should be able to perform any actions on this custom table through these buttons.