sharepoint server – access denied after superuser configuration

I continue to receive "Sorry, this site has not been shared with you." after I ran

$ wa = Get-SPWebApplication -Identity ""

$ wa.Properties[“portalsuperuseraccount”] = ""

$ wa.Properties[“portalsuperreaderaccount”] = ""

$ wa.Update ()

I tried to undo saying:

$ wa = Get-SPWebApplication "URL"

$ wa.Properties.Remove ("")

$ wa.Properties.Remove ("")

$ wa.Update ()

but I still have access denied