Alternate fix for Bug 2981, removing onclick redirect

Signed-off-by: Nicole Engard <nengard@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
(cherry picked from commit c4ea43f3db)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>

circ/circulation.pl

@@ -492,7 +492,6 @@ if ($borrowerslist) {
         -id       => 'borrowernumber',
         -values   => \@values,
         -labels   => \%labels,
-	-onclick  => "window.location = '/cgi-bin/koha/circ/circulation.pl?borrowernumber=' + this.value;",
         -size     => 7,
         -tabindex => '',
         -multiple => 0