You can adjust the log4j2 config to exclude lines that match the one you want to not have printed. See openHAB - Filtering event logs. Or you can edit the source code to remove the line that logs that.
You can adjust the log4j2 config to exclude lines that match the one you want to not have printed. See openHAB - Filtering event logs. Or you can edit the source code to remove the line that logs that.