Remove apt cache from example Vagrantfile

example/Vagrantfile

@@ -1,16 +1,6 @@
 # -*- mode: ruby -*-
 # vi: set ft=ruby :
 
-def local_cache(box_name)
-  cache_dir = File.join(File.expand_path(Vagrant::Environment::DEFAULT_HOME),
-                        'cache',
-                        'apt',
-                        box_name)
-  partial_dir = File.join(cache_dir, 'partial')
-  FileUtils.mkdir_p(partial_dir) unless File.exists? partial_dir
-  cache_dir
-end
-
 # Not really needed, but useful while developing so that vagrant picks it up
 Vagrant.require_plugin 'vagrant-lxc'
 
@@ -23,8 +13,6 @@ Vagrant.configure("2") do |config|
 
   config.vm.synced_folder "/tmp", "/vagrant_data"
 
-  cache_dir = local_cache(config.vm.box)
-  config.vm.synced_folder cache_dir, "/var/cache/apt/archives"
 
   config.vm.provider :lxc do |lxc|
     lxc.customize 'cgroup.memory.limit_in_bytes', '400M'