Inactivate a Workflow
Instead of deleting, you might want to simply consider marking the Workflow inactive for a time before deleting it. To do this, simply use the checkbox at the top to remove the Active checkmark and make the Workflow inactive.
Delete a Workflow
To delete a workflow, select the workflow in the workflow list. In the bottom right of your screen, select Delete.
Note: Once a workflow is deleted, it cannot be restored and if needed in the future would need to be created again.