Removing a hyperlink from a widget

Hi,

http://bit.ly/1DgD3dI

This is in Most Viewed ... widget in the sidebar. There, I want to remove the hyperlink generated for the author. It leads to nowhere.

I added this script to the footer.php but its not working:

<script>
$('.wpp-author a').contents().unwrap();
</script>

Can someone help me to remove this hyperlink for author?
Thanks

@Adam Czajczyk