Fix clippy.

src/event_count/database.rs

@@ -27,7 +27,7 @@ pub(crate) fn record_event(event_type: EventType, input: OrgSource<'_>) {
 pub fn report(original_document: &str) {
     let mut db = GLOBAL_DATA.lock().unwrap();
     let db = db.get_or_insert_with(HashMap::new);
-    let mut results: Vec<_> = db.iter().map(|(k, v)| (k, v)).collect();
+    let mut results: Vec<_> = db.iter().collect();
     results.sort_by_key(|(_k, v)| *v);
     // This would put the most common at the top, but that is a pain when there is already a lot of output from the parser.
     // results.sort_by(|(_ak, av), (_bk, bv)| bv.cmp(av));