Friend Removal

I hate to do it but, I started removing friends that I haven't heard from in a long time.  I send them messages, hugs, and never hear from them so, I am assuming they no longer have an interest in me as a friend or whatever.
I don't believe in having a wall of Avatars but, never communicating with 90% of them/  I mean, what's the purpose.
I hope I am not wrong in doing this.
Oldbiker