Delete unsecure connections history

Under the home tab > wifi security there is a list of previous unsecure wifi connections my phone has made in the past. I made Android forget all but my home network, made some changes to my security settings and deleted the app cache. Now I want to delete the list in the Norton interface to see if the phone is still connecting to these networks. Is there a way to delete the list? (By the way I don't want to use the Norton wifi privacy app.) tia, Bill