Removing tags from email

I have this

add_filter( 'wpcf7_posted_data', 'remove_data', 10, 1 );
function remove_data( $posted_data ) {
	if (isset($posted_data['whatyouwant'][0])) {	
		
		if ($posted_data['whatyouwant'][0] == "") {		
			unset($posted_data['marquee'], $posted_data['lining'], $posted_data['flooring'], $posted_data['noofchairs'], $posted_data['chairtype'], $posted_data['tableslinen'], $posted_data['dance'], $posted_data['bar'], $posted_data['djlights'], $posted_data['heating'], $posted_data['porta'], $posted_data['porta']);	
			
		}		
	}		
	return $posted_data;
}

Which removes the posted data that isn’t required but how do I remove the unwanted tags from the form as the email is coming out with “Lining: [lining]” etc for the lines that aren’t needed.