I need to know how to turn this feature off, we do not want users re-submitting forms. We have workflows triggered by SharePoint list item data and updating information throughout the entire process. The information captured at the time of the original form submission is not the same upon approval, rejection and causing major issues if this option is pushed by a user. 

How do we ensure this feature is not available to participants? We want them to be able to print/download a copy of the completed task form, but do not want them having the option to resubmit the task form.