Fixes XXXX ticketid error

Forum post: http://www.osticket.com/forum/discussion/74564/ticket-numbers-showing-xxxxxxx/p1

Still a problem, but now its due to the template itself having a variable that it shouldn't.

Suggest SQL patch of same for 1.7.5 upgrade to remove message from web-created-tickets.

Could possibly create admin option to display extId, but would have to modify /open.php and remove the ${ticket.extId} from the array and change the fill to 2.. tested, works.  This seems by design, so reworked my solution to simply remove the errant variable.