hide invoice columns until implemented

app/views/orders/_edit_amount.html.haml

@@ -8,7 +8,7 @@
     %td.name{title: order_title.join("\n")}= order_article.article.name
     %td #{order_article.article.unit_quantity} × #{order_article.article.unit}
     %td #{order_article.quantity} + #{order_article.tolerance}
-    %td
+    -#%td # TODO implements invoice screen
       = order_article.units_to_order
       %i.package pkg
     %td

app/views/orders/_edit_amounts.html.haml

@@ -76,7 +76,7 @@
       %th= heading_helper GroupOrderArticle, :units
       %th Members
       %th Ordered
-      %th Invoice
+      -#%th Invoice # TODO implement invoice screen
       %th Received
       %th
   %tbody#result_table