How to delete a data source
Data sources can be deleted for any reason. Deleting a data source removes it from Apex, including any trending data that it already transferred.
To delete a data source:
1. In the web interface, click Configuration > Data.
2. Select one by clicking a table row.
3. Click the garbage can icon .
4. Click Yes to confirm.
 
You successfully deleted a data source and its trending data.