remove unnecessary function

service/src/main/java/repositories/TasksRepository.java

@@ -140,11 +140,6 @@ public class TasksRepository implements Repository
         return encodedHash;
     }
 
-    private void acceptSolution(Team team, Task task)
-    {
-        solutionsRepository.add(new Solution(team, task));
-    }
-
     private Optional<Task> getTaskByLevel(Integer level)
     {
         return getAll().stream()
@@ -167,7 +162,7 @@ public class TasksRepository implements Repository
         Optional<Task> task = findTaskByUserFlag(username, flagValue);
         Optional<Team> team = teamsRepository.getTeamByUserName(username);
         if (task.isPresent() && team.isPresent()) {
-            acceptSolution(team.get(), task.get());
+            solutionsRepository.add(new Solution(team.get(), task.get()));
             return true;
         }
         return false;