state-res: Resolve FIXME comment
@@ -82,8 +82,7 @@ where
// `all_conflicted` contains unique items
// synapse says `full_set = {eid for eid in full_conflicted_set if eid in event_map}`
let all_conflicted: HashSet<_> = get_auth_chain_diff(auth_chain_sets)
- // FIXME: Use into_values() once MSRV >= 1.54
- .chain(conflicting.into_iter().flat_map(|(_k, v)| v))
+ .chain(conflicting.into_values().flatten())
// Don't honor events we cannot "verify"
.filter(|id| fetch_event(id.borrow()).is_some())
.collect();
