Remove search filter on Datatable

Maybe you are looking at something like this: http://www.datatables.net/plug-ins/api/fnFilterClear
You could clear the search in a very simple way:

var table = $('#example').DataTable();
table
 .search( '' )
 .columns().search( '' )
 .draw();

More easy

var table = $('#example').DataTable();
table
.search("").draw();