Removed unused imports

Fixed sonar issues- removed unused imports

Issue-ID: AAF-714
Change-Id: I3b9199087f7d004ce50b35cfec079ec9c6d109fb
Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>
diff --git a/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/update/NotifyCredExpiring.java b/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/update/NotifyCredExpiring.java
index ab7525b..ce00816 100644
--- a/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/update/NotifyCredExpiring.java
+++ b/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/update/NotifyCredExpiring.java
@@ -3,6 +3,8 @@
  * org.onap.aaf
  * ===========================================================================
  * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
+ *
+ * Modifications Copyright (C) 2018 IBM.
  * ===========================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,9 +30,7 @@
 import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
@@ -48,11 +48,9 @@
 import org.onap.aaf.auth.batch.helpers.Notification;
 import org.onap.aaf.auth.batch.helpers.UserRole;
 import org.onap.aaf.auth.batch.helpers.Notification.TYPE;
-import org.onap.aaf.auth.dao.cass.CredDAO;
 import org.onap.aaf.auth.dao.hl.Question;
 import org.onap.aaf.auth.env.AuthzTrans;
 import org.onap.aaf.auth.layer.Result;
-import org.onap.aaf.auth.org.EmailWarnings;
 import org.onap.aaf.auth.org.Organization;
 import org.onap.aaf.auth.org.Organization.Identity;
 import org.onap.aaf.auth.org.OrganizationException;