General Clear notifications from lock screen

I am trying to figure out if the little circle with a line through it just above the camera button is an option to clear notifications from the lock screen. If so does anyone know the name of it? I have to enter a password on my device due to corporate email and if I receive an "ok" response in a message I have to enter my password to clear the notification which is annoying. I found a Cydia tweak called Ipsum but I was seeing if this was another potential option. Thanks