How to stop death animation for custom entity

So, i'm making an entity the player can spawn freely, and to prevent lag, i kill all entities of that kind before spawning a new one.

But, i am faced with a problem: the death animation makes no sense. What's supposedly happening is just teleportation of the entity, but because of the animation you can see it die, and doesn't make much sense(especially considering it isn't even a living being)

How do i remove the death animation? Or is there a better way to remove the entities without resorting to 'kill @e[type=potatoes_of_truth:super_dummy]'?

Please help, i have no idea how to do this. I'm reasonably Ok with coding, if you give me the code.

Thanks in advance!