[IMP] website_sale: hide column if feature is not enabled

Like everywhere else, do not show the website fields if the multi-website
feature is not enabled.

task-3213457

closes odoo/odoo#114221

Related: odoo/enterprise#37734
Related: odoo/upgrade#4402
Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>

addons/website_sale/views/sale_order_views.xml

@@ -210,7 +210,7 @@
         <field name="inherit_id" ref="sale.sale_order_tree"/>
         <field name="arch" type="xml">
             <field name="user_id" position="before">
-                <field name="website_id" optional="show"/>
+                <field name="website_id" groups="website.group_multi_website" optional="show"/>
             </field>
         </field>
     </record>