Remove Demo CI Data. The following script identifies the impacted CIs, checking to ensure they are not relied on by any tasks.

Remove Demo CI Data

// remove demo data CIs
var recCI = new GlideRecord('cmdb_ci')
recCI.addEncodedQuery("sys_created_on<javascript:gs.dateGenerate('2013-09-01','00:00:00')^sys_class_name!=cmdb_ci_snc_component^ORsys_class_name=NULL")
recCI.orderByDesc('sys_created_on')
recCI.query()

var logmsg = "Log Output\nRecords Found: " + recCI.getRowCount() + "\n";

while(recCI.next()){
    var taskCI = new GlideRecord('task_ci');
    taskCI.addQuery('ci_item', recCI);
    taskCI.query()
    if (taskCI.getRowCount() == 0) {
        logmsg += "\t" + recCI.sys_id + "(" + recCI.sys_created_on + ") -  " + recCI.sys_created_by + " - " + recCI.name + "\n";
        recCI.delete()
    };
}

gs.log(logmsg)
// Script Ends Here