fix remove tenant resources (#1100)

Author: shohamroditimemphis

server/memphis_handlers_user_mgmt.go

@@ -164,17 +164,17 @@ func removeTenantResources(tenantName string, user models.User) error {
 		return err
 	}
 
-	err = db.RemoveStationsByTenant(tenantName)
+	err = db.DeleteDlsMsgsByTenant(tenantName)
 	if err != nil {
 		return err
 	}
 
-	err = db.DeleteUsersByTenant(tenantName)
+	err = db.RemoveStationsByTenant(tenantName)
 	if err != nil {
 		return err
 	}
 
-	err = db.DeleteDlsMsgsByTenant(tenantName)
+	err = db.DeleteUsersByTenant(tenantName)
 	if err != nil {
 		return err
 	}