Remove unused struct fields
Remove unused struct fields

While it might be nice to have the full `Passwd` struct around should
anything ever change in the future, there's really no reason why
Alacritty would need this information. So just removing things for now
makes more sense than adding `#[allow(unused)]`.
jwilm/alacritty,jwilm/alacritty,jwilm/alacritty,jwilm/alacritty,alacritty/alacritty,alacritty/alacritty