feat: unify invite flow with referral ref

src/Admin/ImportExportController.php

@@ -352,7 +352,6 @@ class ImportExportController extends ControllerBase {
         $expected_tables = [
             $wpdb->prefix . 'aksrt_credit_log',
             $wpdb->prefix . 'aksrt_signin_log',
-            $wpdb->prefix . 'aksrt_invite',
             $wpdb->prefix . 'aksrt_dl_token',
             $wpdb->prefix . 'aksrt_notification',
         ];