It would be useful only for troubleshooting issues. If you are sure your system is running fine, you can delete this file. SFC.exe will create a new one, next time it is run.
I have used following method to delete:
1. Stop TrustedInstaller.exe (Windows Module Installer) in Taskmanager Services tab. Additionally if you cannot, open the Taskmanager Processes tab and End Task the same process.
2. Delete or move all the .log files in the C:\Windows\Logs\CBS directory, you can delete the .persist and .cab files as well.
3. Start Windows Module Installer service (TrustedInstaller.exe) again.