Let's not go that far.
Despite the fact I am being slightly sarcastic about deleting twitter, I am 100% serious that it's a big deal.
You have to remember manziel is a milenial and social media plays a big role for him like any other milenial. Milenials love their social media so much that they are on multiple social media platforms. The fact that he removed himself from one of those platforms is a big deal and shows he's more committed now than he was a year ago. Even if you want to poke fun at manziel, denying that removing himself from one of the biggest distractions ever created shows growth and maybe a future.