No longer need to create vagrant box locally

Signed-off-by: Abhijit Hiremagalur <[email protected]>

README.md

@@ -26,15 +26,9 @@ at the command line, see the [warden server README](warden/README.md).
 
 ## Testing
 
-[warden-test-infrastructure](https://github.com/cloudfoundry/warden-test-infrastructure) provides a way to create a vagrant box.
-
 ```
 # Checkout the repos
 git clone https://github.com/cloudfoundry/warden
-git clone https://github.com/cloudfoundry/warden-test-infrastructure
-
-# Create a vagrant box
-pushd warden-test-infrastructure && git submodule update --init && ./create_vagrant_box.sh && popd
 
 # Run warden tests
 pushd warden && bin/test_in_vm

Vagrantfile

@@ -1,5 +1,5 @@
 Vagrant.configure("2") do |config|
   config.ssh.username = "vagrant"
   config.vm.box = "warden-compatible"
-  config.vm.box_url = "~/boxes/warden-compatible.box"
+  config.vm.box_url = "https://s3.amazonaws.com/runtime-artifacts/warden-compatible.box"
 end