Bug 16984: Do not clone the item block for standing orders

Bug 16984: Do not clone the item block for standing orders

If AcqCreateItem is set to ordering and the basket is marked as
"standing orders", when ordering a JS error is raised:
additem.js:176 Uncaught TypeError: window[events[i]] is not a function

The item block should not be displayed in that case.

Test plan:
- Set AcqCreateItem to "ordering"
- Create a basket and tick the "Standing orders" checkbox
- Add an order to this basket
=> Without this patch you get the JS error
=> With this patch applied you will not get it

Signed-off-by: Claire Gravely <claire_gravely@hotmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>