Three ways of doing are:
For DataTables >=1.10, use:
$('table').dataTable({searching: false, paging: false, info: false});
For DataTables <1.10, use:
$('table').dataTable({bFilter: false, bInfo: false});
or using pure CSS:
.dataTables_filter, .dataTables_info { display: none; }
$('table').dataTable({dom: 'lrt'});