Do not vendor cookbooks using Berkshelf anymore

Instead, use the Berkshelf support in knife-solo and the
vagrant-berkshelf plugin on Vagrant

cookbooks/firewall/attributes/windows.rb

@@ -1,8 +0,0 @@
-# Windows platform defult settings: block undefined inbould traffic, allow all outgoing traffic
-
-default['firewall']['windows']['defaults'] = {
-  policy: {
-    input: 'blockinbound',
-    output: 'allowoutbound',
-  },
-}