Harmonize user champ pj purge route to gestionnaire

app/views/shared/dossiers/editable_champs/_piece_justificative.html.haml

@@ -16,7 +16,7 @@
     - if champ.private?
       = link_to 'supprimer', gestionnaire_champ_purge_champ_piece_justificative_path(procedure_id: champ.dossier.procedure_id, dossier_id: champ.dossier_id, champ_id: champ.id), remote: true, method: :delete
     - else
-      = link_to 'supprimer', purge_champ_piece_justificative_dossier_path(champ_id: champ.id), remote: true, method: :delete
+      = link_to 'supprimer', champ_purge_champ_piece_justificative_path(id: champ.dossier_id, champ_id: champ.id), remote: true, method: :delete
     %br
     Modifier :
   = form.file_field :piece_justificative_file,

config/routes.rb

@@ -284,7 +284,10 @@ Rails.application.routes.draw do
         post 'commentaire' => 'dossiers#create_commentaire'
         post 'ask_deletion'
         get 'attestation'
-        delete 'purge_champ_piece_justificative'
+
+        resources :champs, only: [] do
+          delete 'purge_champ_piece_justificative' => 'dossiers#purge_champ_piece_justificative'
+        end
       end
 
       collection do