Not without disabling the self-defence module in Settings Troubleshooting.
Personally I would suggest restricting log file size in Settings, Maintenance, Auto cleanup and lower the days and in Logs, reduce the file size, see image of my settings. This doesn’t apply to the setup.log file as that is useful as a debugging source.
If you are considering this measure to save hard disk space you are in real trouble as these text files aren’t massive. System Restore (system volume information folders, one on each partition) is probably a candidate to go on a diet as by default it can use up to 12% of your hard disk space.
You’re welcome, though your earlier point about some of the log files may be needed by avast rather than just being log files to provide useful user information.
Yes, less can be more, but in the days of monster hard disks (that isn’t such an issue) what had to be done many years ago when hard disks were much smaller you had to be keeping things in check.