Its possible to change the log file behaviour with cmdlets with customizable values:
Set-SmLogSettings -Plugin -HostName <plugin host name/IP> -PluginCode SCV -MaxFileSize 10MB -MaxSizeRollBackups 100 -JobLogsMaxFileSize 1000 -LogLevel Debug
LogLevel can be DEBUG,INFO,ALL,ERROR
So if you change to ERROR you can avoid all other logging.