How to remove custom tab

You can add the custom code below to file functions.php of a child theme

add_filter( 'tour_booking_default_product_tabs', 'remove_product_tabs_location', 98 );
function remove_product_tabs_location( $tabs ) {
// remove tab location in single tour
unset( $tabs['location_tab'] );
// remove tab reviews in single tour
unset( $tabs['reviews'] );
return $tabs;
}