Bug 17738: Remove warning about redeclaration of $patron

Signed-off-by: Marc Véron <veron@veron.ch>

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>

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

opac/opac-reserve.pl

@@ -351,7 +351,6 @@ if ( $borr->{lost} && ($borr->{lost} == 1) ) {
     );
 }
 
-my $patron = Koha::Patrons->find( $borrowernumber );
 if ( $patron->is_debarred ) {
     $noreserves = 1;
     $template->param(