Cleanup no longer needed cross modification

app/services/users/destroy_service.rb

@@ -65,10 +65,7 @@ module Users
       user.destroy_dependent_associations_in_batches(exclude: [:snippets])
 
       # Destroy the namespace after destroying the user since certain methods may depend on the namespace existing
-      user_data = nil
-      ::Gitlab::Database::QueryAnalyzers::PreventCrossDatabaseModification.allow_cross_database_modification_within_transaction(url: 'https://gitlab.com/gitlab-org/gitlab/-/issues/340260') do
       user_data = user.destroy
-      end
       namespace.destroy
 
       user_data