Multiple requests have been issued from many customers using either the free or pro version of this plugin to bring back the Clear Logs button.
It’s quite a shame that iThemes does not listen to its customers. iThemes has yet to demonstrate why it was removed.
Until iThemes decides to bring it back (think Sales), I highly recommend using the plugin recommended by @lukefiretoss. Very useful and does not impact website speed.
As an option, you can also use a Real Cron instead of WP Cron to clean (or “truncate”) the database tables listed below at the time interval you designate. Click here for details. Method works like a charm for us. Every 12 hours, below tables are cleaned. Our website runs great. No security issues.
The Database Tables that we clean (or “truncate”) every 12 hours are:
wp_itsec_dashboard_events
wp_itsec_distributed_storage
wp_itsec_lockouts
wp_itsec_logs
wp_itsec_temp
The Real Cron method may appear a bit complicated at first, but once set up, you’ll be glad you did. It’s a “fire and forget” method that will bring you peace of mind.
Cheers!