🔧 chore: TODO 주석 제거

Author: silver-eunjoo

backend/src/main/java/io/f1/backend/domain/game/app/GameService.java

@@ -175,9 +175,8 @@ public void gameEnd(Room room) {
 
         Map<String, Player> playerSessionMap = room.getPlayerSessionMap();
 
-        // TODO : 랭킹 정보 업데이트
-        GameResultListResponse gameResultListResponse =
-                toGameResultListResponse(playerSessionMap, room.getRound());
+        GameResultListResponse gameResultListResponse = toGameResultListResponse(playerSessionMap,
+            room.getRound());
 
         messageSender.sendBroadcast(
                 destination,

backend/src/main/java/io/f1/backend/domain/stat/app/StatService.java

@@ -36,7 +36,6 @@ public StatPageResponse getRanks(Pageable pageable, String nickname) {
         return response;
     }
 
-    // TODO: 게임 종료 후 호출 필요
     public void updateRank(long userId, boolean win, int deltaScore) {
         statRepository.updateRank(userId, win, deltaScore);
     }