The other answers work, but if you are using the KeyTable extension with the DataTables Editor, hiding the header (via display:none) or removing it (via $().remove()) will prevent KeyTable from working properly. (I'm not sure why, but this is empirically true for me with DataTables v.1.13.5, Editor v.2.0.8, and KeyTable v2.10.0: inline editing is no longer triggered by mouse clicks or key presses when the header is removed/hidden.)
A workaround that doesn't have this drawback is to set the header row height to 0, using CSS:
#selector thead tr {
height: 0;
}
or the drawCallback configuration setting:
drawCallback: function (settings) {
$("#selector thead tr").css('height', 0);
}