How to delete a survey:
Click on Surveys located in the left panel.
Your list of surveys display.
Locate the survey you would like to delete. You can also enter keywords in the Search field to locate your survey.
Click on the icon under Action.
Click on Delete link.
A pop-up message displays. Click Yes to "Are you sure you want to delete this template?"
Note: When a survey is deleted, you cannot restore a deleted survey or access the survey data via Responses under Analytics.