Remove unused imports

Author: Julien Hervot de Mattos Vaz

framework/quota/src/test/java/org/apache/cloudstack/quota/QuotaAlertManagerImplTest.java

@@ -33,7 +33,6 @@
 import org.apache.cloudstack.quota.dao.QuotaEmailConfigurationDaoImpl;
 import org.apache.cloudstack.quota.dao.QuotaEmailTemplatesDao;
 import org.apache.cloudstack.quota.vo.QuotaAccountVO;
-import org.apache.cloudstack.quota.vo.QuotaEmailConfigurationVO;
 import org.apache.cloudstack.quota.vo.QuotaEmailTemplatesVO;
 import org.junit.Assert;
 import org.junit.Before;