Daily Quests how do you cancel them

i have the daily quest complete the Traitors adventure. The problem is that I dont have the Traitors adventure and even if I did im not a high enough level to complete it as I dont have the troop types or numbers yet.
You used to be able to cancel them but you cant now and ive had it sitting there for 4 days doing nothing.
can anyone help?

Open your Quest List.. the yellow note with the ! on it next to your portrait top-left.. and scroll down the list. Find the entry you want to cancel.. click on it to make sure it's the right one.. and click the little X that is dangerously near the checkmark box and it will give you the option to cancel it.

thank you