Bug 26141: Remove duplicated code from search.pl

Bug 26141: Remove duplicated code from search.pl

commit 417553a9e47bf31f4cb785162e3dced856a2ac2a
  Bug 12478: starting to add search to staff client

This commit added code related to the itemtypes to the advanced search, but this code already existed.

The weird bit is:
$template->param(advancedsearchesloop => \@advancedsearchesloop);
my $types = C4::Context->preference("AdvancedSearchTypes") || "itemtypes";
my $advancedsearchesloop = prepare_adv_search_types($types);
$template->param(advancedsearchesloop => $advancedsearchesloop);

We are passing twice advancedsearchesloop to the template.

Test plan (for QA):
Review the changes and confirm that we can safely remove this code

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>