Bug 17738: [QA Follow-up] Remove second find of same patron

We can just use the $patron from line 77 here.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>

opac/opac-reserve.pl

@@ -199,7 +199,6 @@ foreach my $biblioNumber (@biblionumbers) {
 if ( $query->param('place_reserve') ) {
     my $reserve_cnt = 0;
     if ($maxreserves) {
-        my $patron = Koha::Patrons->find( $borrowernumber );
         $reserve_cnt = $patron->holds->count;
     }