How can i delete everything in my bank?

Hey i wanna start freshly again in the world of Wynncraft but old stuff like completed quest iteams are still in my bank and i have no clue how to delete or destroy them.

 

to destroy items that keep saying "You will need this for later quests!" or something, just take them, open your inventory, put them in your crafting grid and fill every available space in your inventory with any items (like emeralds) or something, and then close your inventory. the message will still appear but the item will be gone