Suppressing all messages, including "started a call" would be useful !

Improving Discord should have these options :

1 Suppressing all messages in one shot should be an option, because I think it's quiet silly  and unefficient to do it one by one.

I guess some lines of codes should do the trick... we're not in the 90's since long !

2 To be able to delete the lines "started a call..." should also be a in-built function.

I don't understand Discord's interest of keeping these, imho, unuseful lines :

taking space on the chat pages, and furthermore storage amount in the whole system. Don't forget we're talking about billions of lines !