Revert "rails admin is conflicting with client side validations: see...

Revert "rails admin is conflicting with client side validations: see https://github.com/sferik/rails_admin/issues/985"

This reverts commit b70165b9.

config/routes.rb

@@ -3,7 +3,7 @@
 #   the COPYRIGHT file.
 
 Diaspora::Application.routes.draw do
-  if Rails.env.production? && !ENV['RAILS_ADMIN']
+  if Rails.env.production?
     mount RailsAdmin::Engine => '/admin_panel', :as => 'rails_admin'
   end