Fix: Delete tenant assets

dao/src/main/java/org/thingsboard/server/dao/tenant/TenantServiceImpl.java

@@ -24,6 +24,7 @@ import org.thingsboard.server.common.data.Tenant;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.page.TextPageData;
 import org.thingsboard.server.common.data.page.TextPageLink;
+import org.thingsboard.server.dao.asset.AssetService;
 import org.thingsboard.server.dao.customer.CustomerService;
 import org.thingsboard.server.dao.dashboard.DashboardService;
 import org.thingsboard.server.dao.device.DeviceService;
@@ -56,6 +57,9 @@ public class TenantServiceImpl extends AbstractEntityService implements TenantSe
     @Autowired
     private CustomerService customerService;
 
+    @Autowired
+    private AssetService assetService;
+
     @Autowired
     private DeviceService deviceService;
 
@@ -100,6 +104,7 @@ public class TenantServiceImpl extends AbstractEntityService implements TenantSe
         customerService.deleteCustomersByTenantId(tenantId);
         widgetsBundleService.deleteWidgetsBundlesByTenantId(tenantId);
         dashboardService.deleteDashboardsByTenantId(tenantId);
+        assetService.deleteAssetsByTenantId(tenantId);
         deviceService.deleteDevicesByTenantId(tenantId);
         userService.deleteTenantAdmins(tenantId);
         ruleService.deleteRulesByTenantId(tenantId);