chore: remove trivial single-use helper functions

crates/utils/src/lib.rs

@@ -6,4 +6,4 @@ mod time;
 pub use pubkey::shorten_pubkey;
 pub use repo_url::same_repo_url;
 pub use text::{flatten_whitespace, middle_truncate};
-pub use time::{latest, relative_time, relative_time_secs, sort_newest_first, sort_oldest_first};
+pub use time::{latest, relative_time, relative_time_secs, sort_newest_first};

crates/utils/src/time.rs

@@ -8,10 +8,6 @@ pub fn sort_newest_first(events: &mut [Event]) {
     });
 }
 
-pub fn sort_oldest_first(events: &mut [Event]) {
-    events.sort_by_key(|e| e.created_at);
-}
-
 pub fn latest<I>(events: I) -> Option<Event>
 where
     I: IntoIterator<Item = Event>,