remove unnecessary method

service/src/main/java/com/telephoners/krakyournet/ctf/repositories/TasksRepository.java

@@ -23,7 +23,6 @@ import java.util.stream.Collectors;
 @Singleton
 public class TasksRepository implements Repository
 {
-
     private ApplicationConfiguration applicationConfiguration;
     private Datastore datastore;
     private TeamsRepository teamsRepository;
@@ -47,16 +46,6 @@ public class TasksRepository implements Repository
                 .get();
     }
 
-    private Optional<Task> getByUserFlag(String username, String flagValue)
-    {
-        return getUserFlagsHashes(username).entrySet()
-                .stream()
-                .filter(flagsMapEntry -> flagsMapEntry.getKey().contains(flagValue))
-                .map(Map.Entry::getValue)
-                .map(this::getByLevel)
-                .findFirst();
-    }
-
     public List<Task> getAllPublic()
     {
         return datastore.createQuery(Task.class)