Remove database app_name and app_uuid (#7562)

- Remove database app_name, app_uuid
  - This is handled automatically by the database class
- Remove redundant database::new()

app/xml_cdr/xml_cdr_inc.php

@@ -103,9 +103,6 @@
 		$_GET['show'] = 'false';
 	}
 
-//connect to database
-	$database = database::new();
-
 //get post or get variables from http
 	if (!empty($_REQUEST)) {
 		$cdr_id = $_REQUEST["cdr_id"] ?? '';