Instead of deleting a Survey when it is no longer needed, we suggest that the Status be set to Inactive. We do NOT recommend deleting a Survey once end-user responses have been submitted.
1.From the list of Surveys, select a Survey, and then click Edit record 
.
2.Click the Status drop-down arrow, and then select Inactive.
3.Click 
.
The Survey will no longer display in the Survey list on the Detail tab in the Course/Event Details.