Hello,
Reviews as you know is a feature that by default comes from WooCommerce. So, the Theme itself doesn’t have an option to disable them completely. But under the Dashboard > WooCommerce > Settings > Products tab > you will find the option for enabling the Review > so you can try disable it from there: https://snipboard.io/Lxgt0i.jpg
For the time being we have disabled this option on your Site and now the Reviews are not showing on the Single Product page of your Site. Please check back your Site after completely clearing browser and server cache.
Best Regards