Bug 12673: Remove CGI::scrolling_list from C4::Items.pm

Bug 12673: Remove CGI::scrolling_list from C4::Items.pm

This patch removes only instance in this file

To test:
1. Apply the patch
2. (Esay way) Put on staff URL
/cgi-bin/koha/services/itemrecorddisplay.pl?biblionumber=N&itemnumber=M
3. Code replaced corresponds to pulldowns, verify information
is correct (check with another item edit view)

PrepareItemrecordDisplay() in Items.pm is filled with chunks of
HTML code that must be put on TT file. For now scrolling_list
is the only removed.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Tested different item edit displays and the URL given above,
no regressions found. Also passes all tests and QA script.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>