Update concepts-audit.md

SHOW shared_preload_libraries; this query require superuser permissions, but In Azure Database for PostgreSQL do not allow to grant superuser permissions for users.
This query is not working.

https://learn.microsoft.com/en-us/azure/postgresql/single-server/concepts-servers#managing-your-server

Author: yfukukama

articles/postgresql/single-server/concepts-audit.md

@@ -49,12 +49,6 @@ To use the [portal](https://portal.azure.com):
       :::image type="content" source="./media/concepts-audit/share-preload-parameter.png" alt-text="Screenshot that shows Azure Database for PostgreSQL enabling shared_preload_libraries for PGAUDIT.":::
 
    1. Restart the server to apply the change.
-   1. Check that `pgaudit` is loaded in `shared_preload_libraries` by executing the following query in psql:
-
-        ```SQL
-      show shared_preload_libraries;
-      ```
-      You should see `pgaudit` in the query result that will return `shared_preload_libraries`.
 
    1. Connect to your server by using a client like psql, and enable the pgAudit extension: