remove FIXME that doesn't require fixing

Author: fee1-dead

compiler/rustc_resolve/src/late.rs

@@ -4135,9 +4135,9 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
     fn record_candidate_traits_for_expr_if_necessary(&mut self, expr: &'ast Expr) {
         match expr.kind {
             ExprKind::Field(_, ident) => {
-                // FIXME(#6890): Even though you can't treat a method like a
-                // field, we need to add any trait methods we find that match
-                // the field name so that we can do some nice error reporting
+                // #6890: Even though you can't treat a method like a field,
+                // we need to add any trait methods we find that match the
+                // field name so that we can do some nice error reporting
                 // later on in typeck.
                 let traits = self.traits_in_scope(ident, ValueNS);
                 self.r.trait_map.insert(expr.id, traits);