Bring back the good stuff.
I understand not wanting too many game modes, i really do, but why must you completely remove the game type?
"One for All" was one of my favorite game types not only from the pure chaos but it originally surfaced as a "glitch" where people duped custom games to allow them to play. This was really cool to me, but what happens when you removed it, no one can play it anymore. This absolutely irritates me because while dropping matchmaking would have been good enough, you also removed it as a custom game option, not even the dupe allows you to play any of them. Please Riot, start a poll or something, champions and skins are nice, I've spent way too much money to this as a truth, but the game loses some luster when i can't even enjoy an old game type with friends. 
vs 5
match.