Bug 10913: The delete basket confirmation page is never displayed

Bug 10913: The delete basket confirmation page is never displayed

This condition is never reached, the confirmation to delete a basket is
done with a popup in the template.

Test plan:
Confirm you don't find any regression when creation/editing and deleting
a basket.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
NOTE: I didn't create or edit. However, the only perl script that uses
      the template is acqui/basket.pl and the only place delete_confirm
      is set in acqui/basket.pl is in that code which is only called if
      del_basket actually existed anywhere else, which it doesn't.
      I did have two baskets, one with two transfers from the first, so
      I transferred one back, and then proceeded to test the two delete
      buttons in the modal. No issues. Cancel (to close the modal) works
      too.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>