Remove syndicate hat and variants from trinket pool

[Nnystyxx]

The biggest problem with the hat isn't the fact that it's a trinket that gets you killed.

The biggest problem with the hat is that being a trinket makes it less cool, and also leads to less people killing you over the hat.

People just aren't all that interested in killing people over a trinket.

I can say that as a person who would like more opportunities to fight someone on relatively equal footing to me, rather than a 2-hit KO of "my ass flew off" and "I got shot with a fireball/lightning" I would absolutely be interested in hunting a person down over a trinket.