If you no longer need a poll in your account, you can delete it by selecting the checkmark to the left of the poll on your My Polls page and then clicking the Delete button at the top right:
You will be prompted to confirm that you want to delete the poll and when you click Ok the poll will be deleted. The deletion is permanent and the poll cannot be recovered.
For more information on SurveyMethods Polls, visit the SurveyMethods Polls help article.