some refactor

src/main/java/ru/ulstu/grant/repository/GrantRepository.java

@@ -5,6 +5,4 @@ import ru.ulstu.grant.model.Grant;
 
 public interface GrantRepository extends JpaRepository<Grant, Integer> {
 
-//    @Query("SELECT p FROM Paper p WHERE (:author IS NULL OR :author MEMBER OF p.authors) AND (YEAR(p.createDate) = :year OR :year IS NULL)")
-//    List<Paper> filter(@Param("author") User author, @Param("year") Integer year);
 }