Remove leftover comment.

cristianoc · cristianoc · commit 2cd5c6a744c3 · 2022-09-11T07:42:19.000+02:00
diff --git a/src/res_core.ml b/src/res_core.ml
@@ -4310,7 +4310,6 @@ and parseFieldDeclarationRegion p =
   | Lident _ ->
     let lident, loc = parseLident p in
     let name = Location.mkloc lident loc in
-    (* XXX *)
     let optional = parseOptionalLabel p in
     let typ =
       match p.Parser.token with
