Tech - Suppression du flow PNO de l'init Prefect (#3364)

## Linked issues

----

- [ ] Tests E2E (Cypress)

Author: louptheron

datascience/src/pipeline/flows_config.py

@@ -283,7 +283,6 @@
     controls.flow,
     controls_open_data.flow,
     current_segments.flow,
-    distribute_pnos.flow,
     districts.flow,
     enrich_logbook.flow,
     enrich_positions.flow,