remove submit post button in frontend submit

add_action(
    'init',
    function () {
        if ( class_exists( 'JNews_Frontend_Endpoint' ) ) {
            remove_action( 'jnews_after_account_nav', array( JNews_Frontend_Endpoint::getInstance(), 'after_account_nav' ) );
            remove_action( 'jnews_account_page_endpoint', array( JNews_Frontend_Endpoint::getInstance(), 'account_page_endpoint' ) );

        }
    }
);