Why did Riot remove the Live High Elo games and community chat?

I remember having the thing in the old client which allowed you to spectate high diamond - challenger games that were going on live. Why isn't it a thing anymore? Sometimes I'm missing it, like I would like to watch it every now and then. Same goes for the public chat, where you had a few channels and you were able to look for a team, talk with people and stuff. Why were these functions removed from the game? I personally really liked those. {{sticker:sg-soraka}}
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