Bug 42915: (QA follow-up) Remove unused filters_options variable

filters_options was introduced with the coded_values library filtering
patch but never referenced anywhere in the file.

Signed-off-by: Martin Renvoize <martin.renvoize@openfifth.co.uk>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

koha-tmpl/intranet-tmpl/prog/js/holds.js

@@ -152,10 +152,6 @@ $(document).ready(function () {
         if (!holdsTable) {
             var title;
 
-            let filters_options = {
-                libraries: all_libraries,
-            };
-
             holdsTable = $("#holds-table").kohaTable(
                 {
                     autoWidth: false,