Reduce the number of trinkets in the gamemode

[piqey]

There are far too many trinkets. There's 6 categories of them and I couldn't even name 4 trinkets, let alone 4 of the categories. As nice as it would be to just mass delete the dumber trinkets, careful consideration must be used given how delicate the balance of multiplayer gameplay is. Knowing that fact, we need to be sure we buff humans and zombies to make up for any places they'd have an edge over one another due to the removal of mechanics. This newer branch of the gamemode has a lot of things we don't understand nor care to, and bringing the gamemode back to "the basics" is less "basic" than I expected it to be going into this.