minor: remove warnings

SVN: 19868

openbis/source/java/ch/systemsx/cisd/openbis/generic/server/dataaccess/db/HibernateSearchDAO.java

@@ -294,7 +294,6 @@ final class HibernateSearchDAO extends HibernateDaoSupport implements IHibernate
             this.dataProvider = dataProvider;
         }
 
-        @SuppressWarnings("unchecked")
         public List transformList(List collection)
         {
             throw new IllegalStateException("This method should not be called");