Hi,
jQuery is referenced at Line 97 of functions.php containing
wp_enqueue_script('themonic-mobile-navigation'It is required for mobile navigation. It is not recommended to remove it and if you do want to remove it then custom code has to be written to handle mobile view so it won’t look weird.
Please note that jQuery is a required file for WordPress for proper functioning of many plugins, its size is only 15KB.
Please contact us at [email protected] for custom work as it is not covered under free support.