We can't really remove anything, we can only cover up or replace.
valve dont accept "styles" anymore. sadly

Oh,i did not know about that.

Sometimes Valve make simple styles that remove bodygroups (the grenades are a bodygroup. Other examples are Scout headphones, Demoman feet, etc.). For instance, Valve updated the Greased Lighting, along with other items, with styles that removes or retains the Scout headphones. I don't see it happening much on other classes other than the Scout.

That's Valve's decision, to be honest, but as far I can tell, they base off on the pictures of the workshop. For example, the Soot Suit, even though barely clipping with the default napalm grenades, the pictures were made without, since the author thought it would better without them, and it was added and the "grenades" bodygroup for the pyro is disabled upon equipping the item.

To be fair, the last item with two styles that Valve added was the Lurker's Leathers, which for me, was a good decision. I dislike the default style with the black sweater, but I like the one with the tie.

引用自 Texman：

We can't really remove anything, we can only cover up or replace.
valve dont accept "styles" anymore. sadly

Do you think of making a third cosmetic to finish this set?

We had already done a hat for this set, but it was ultimatly scrapped.

I like the belt, though I agree that the grenades should be removed.