Bug 26215: Remove the use of jquery.checkboxes plugin from Z39.50 search pages

Bug 26215: Remove the use of jquery.checkboxes plugin from Z39.50 search pages

This patch removes the use of the jquery.checkboxes plugin from three
Z39.50 search templates: Acquisitions, Authorities, and Cataloging.

To test, apply the patch and test the controls for selecting and
deselecting Z39.50 search targets on the following pages:

 - In Acquisitions: Locate a vendor and add to basket -> From an
   external source.
 - In Authorities: Click "New authority" -> "New from Z39.50/SRU."
 - In Cataloging: Click "New from Z39.50/SRU."

Signed-off-by: Amit Gupta <amit.gupta@informaticsglobal.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>