Hiding SharePoint Task and Calendar fields
You may store your jQuery file locally or out in the cloud. To hide the content editor webpart, simply select “Hidden” from the Layout section of the edit web part dialog box.
var tbl = $(‘table.ms-formtable’);
$(‘tr:contains(“Status”)’, tbl).css(‘display’, ‘none’);
$(‘tr:contains(“Date Completed”)’, tbl).css(‘display’, ‘none’);
$(‘tr:contains(“Comments”)’, tbl).css(‘display’, ‘none’);