Bug 766: remove CGI::scrolling_list from request.pl

Bug 766: remove CGI::scrolling_list from request.pl

Let the template take care of generating the display.
Lets at least part of request.pl be more succinct.

To test, place a hold and search for the patron using a partial name.
You should get a dropdown select list of patrons and be able to select
the patron to hold for from there.

The functionality should remain unimpaired after this patch is applied.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit 7668e19c9593da570cffb5cd4640fe175d739328)
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>