Remove unnecessary filtering code

After removing collections from the filtering menu, there was quite a good cleanup here pending

app/views/users/show.html.erb

@@ -1,7 +1,7 @@
 <% @page_title = @user.name %>
 
 <% content_for :header do %>
-  <%= render "filters/menu", user_filtering: @user_filtering %>
+  <%= render "filters/menu" %>
 <% end %>
 
 <div class="panel shadow center txt-align-center margin-block-end-double">