Bug 26767: Remove the use of jquery.checkboxes plugin from duplicate orders template

Bug 26767: Remove the use of jquery.checkboxes plugin from duplicate orders template

This patch removes the use of the jquery.checkboxes plugin from the
duplicate orders template in acquisitions.

To test, apply the patch and go to Acquisitions -> Vendor -> Basket.

- Click "Add to basket."
- Click "From existing orders (copy)."
- Perform a search which will return some orders.
- Test the "Select all" and "Clear all" links. Confirm that they work
  correctly.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>