How do I remove some friends from candy crush saga?

You're a genius, whoever you are, Thanks a lot, I had some friends who remember to ask me for lives more than 10 times every day but cannot give me a life in a year even though I ask them for lives. Thanks to you, I just put them in a water closet and flushed them away, I'm so happy and free!!

My random friend isn't listed and I want him deleted.