Bug 32877: Fix cataloguing/value_builder/upload.pl

Remove unnecessary call to event.preventDefault

This is part of the refactoring happening in bug 30975

Test plan:
1. Verify that the plugin continues to work as before

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>

cataloguing/value_builder/upload.pl

@@ -45,7 +45,6 @@ my $builder = sub {
     return <<"SCRIPT";
 <script>
         function Click$params->{id}(event) {
-            event.preventDefault();
             var index = event.data.id;
             var str = document.getElementById(index).value;
             var myurl, term;