Replace duplicated v_xml_cdr_import.php with a call to the post method of xml_cdr (#5956)

* Redirect duplicated xml_cdr_import script

This replaces the duplicated code in v_xml_cdr_import.php with xml_cdr_import.php

This also adds a call to `$cdr->post();` in that file to then process the POSTed data from FreeSWITCH

app/xml_cdr/xml_cdr_import.php

@@ -44,8 +44,10 @@
 	ini_set('memory_limit', '256M');
 	ini_set("precision", 6);
 
-//import from the file system
 	$cdr = new xml_cdr;
+//import from the FreeSWITCH POST
+	$cdr->post();
+//import from the file system
 	$cdr->read_files();
 
 ?>