chore(users): grfn -> aspen

Change-Id: I6c6847fac56f0a9a1a2209792e00a3aec5e672b9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10809
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>

users/grfn/achilles/src/parser/util.rs

@@ -1,8 +0,0 @@
-use nom::character::complete::multispace0;
-use nom::{complete, map, named, tag, tuple};
-
-named!(pub(crate) comma(&str) -> (), map!(tuple!(
-    multispace0,
-    complete!(tag!(",")),
-    multispace0
-) ,|_| ()));