If you turn off System Restore for any given drive and reboot, the System Volume Information folder remains but there are no restore points left in it or being made for it, therefore, there are no change.log files in the System Volume Information folder. Maybe you are referring to an external hard drive and if so, maybe System Restore will give the option to monitor that drive, I have no way to check that out but all you have to do is turn off the monitoring for that drive. I just double checked that by putting in my usb flash drive and checked System Restoe to see if I even had the option of turning it on for that drive, I do not. Usually System Restore is only for fixed drives which are hard drives.
The change.log file for System Volume Information should only be in the individual restore point folders in the System Volume Information folders for drives that have System Restore turned on.