When create custom buttons on Service Desk web interface pages, one will notice there is a shortcut added to the button label. For example, on contact detail page, add a button "OnCall" and you will notice that SDM adds a shortcut like "OnCall" that when you do Alt+a it will open the page from this button.
Can I remove this kind of shortcuts?
Release : 17.3
You can not remove shortcuts.
Shortcuts are designed to have quick access to the items so end users do not need to switch from keyboard to mouse click and they are integrated part of the app that you can't remove them.