[#2486] Always order champs

to help activerecord cache the champs collection

app/views/new_gestionnaire/dossiers/annotations_privees.html.haml

@@ -3,10 +3,10 @@
 = render partial: "header", locals: { dossier: @dossier }
 
 #dossier-annotations-privees.container
-  - if @dossier.ordered_champs_private.present?
+  - if @dossier.champs_private.present?
     %section
       = form_for @dossier, url: annotations_gestionnaire_dossier_path(@dossier.procedure, @dossier), html: { class: 'form' } do |f|
-        = f.fields_for :champs_private, f.object.ordered_champs_private do |champ_form|
+        = f.fields_for :champs_private, f.object.champs_private do |champ_form|
           - champ = champ_form.object
           = render partial: "shared/dossiers/editable_champs/editable_champ",
             locals: { champ: champ, form: champ_form, seen_at: @annotations_privees_seen_at }

app/views/new_gestionnaire/dossiers/print.html.haml

@@ -13,7 +13,7 @@
 
 %h2 Formulaire
 
-- champs = @dossier.ordered_champs.decorate
+- champs = @dossier.champs.decorate
 - if champs.any?
   = render partial: "shared/dossiers/champs", locals: { champs: champs, dossier: @dossier, demande_seen_at: nil }
 
@@ -49,7 +49,7 @@
 
 %h2 Annotations privées
 
-- if @dossier.ordered_champs_private.present?
+- if @dossier.champs_private.present?
   %table
     - @dossier.champs_private.each do |champ|
       %tr