fixed some stuff in the DAO

datastore/src/main/java/net/jami/datastore/dao/DeviceDao.java

@@ -78,11 +78,6 @@ public class DeviceDao extends AbstractDao<Device> {
         }
     }
 
-    @Override
-    public boolean deleteObject(LinkedHashMap<String, String> constraints) {
-        return false;
-    }
-
     @Override
     public boolean updateObject(StatementList update, StatementList constraints) {
         return false;

datastore/src/main/java/net/jami/datastore/dao/SystemDao.java

@@ -76,11 +76,6 @@ public class SystemDao extends AbstractDao<SystemAccount> {
         }
     }
 
-    @Override
-    public boolean deleteObject(LinkedHashMap<String, String> constraints) {
-        return false;
-    }
-
     @Override
     public boolean updateObject(StatementList update, StatementList constraints) {
         return false;

datastore/src/main/java/net/jami/datastore/dao/UserDao.java

@@ -83,10 +83,4 @@ public class UserDao extends AbstractDao<User> {
             DataStore.connectionPool.returnConnection(connection);
         }
     }
-
-
-    @Override
-    public boolean deleteObject(LinkedHashMap<String, String> constraints) {
-        return false;
-    }
 }

datastore/src/main/java/net/jami/datastore/dao/UserProfileDao.java

@@ -60,9 +60,4 @@ public class UserProfileDao extends AbstractDao<UserProfile> {
     public boolean storeObject(UserProfile object) {
         return false;
     }
-
-    @Override
-    public boolean deleteObject(LinkedHashMap<String, String> constraints) {
-        return false;
-    }
 }