Drunk History has been cancelled but cannot add an end year

Comedy Central has cancelled Drunk History after the previously announced 16 episode season 7. I can't add a Series End Year because someone add shells for all 16 episodes. I don't really want to have to send 16 emails to clean up these episodes. Can an employee delete all of 7 season which will no longer happen?

https://ew.com/tv/drunk-history-canceled-comedy-central/