Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/redis/metadata.json

@@ -1,39 +0,0 @@
-{
-  "name": "redis",
-  "description": "Installs and configures Redis",
-  "long_description": "",
-  "maintainer": "Phil Cohen",
-  "maintainer_email": "github@phlippers.net",
-  "license": "MIT",
-  "platforms": {
-    "debian": ">= 0.0.0",
-    "ubuntu": ">= 0.0.0"
-  },
-  "dependencies": {
-    "apt": ">= 0.0.0"
-  },
-  "providing": {
-
-  },
-  "attributes": {
-
-  },
-  "recipes": {
-    "redis::default": "Sets up ppa apt repository",
-    "redis::server": "Installs redis server",
-    "redis::client": "Installs redis client"
-  },
-  "version": "0.5.6",
-  "source_url": "",
-  "issues_url": "",
-  "privacy": false,
-  "chef_versions": [
-
-  ],
-  "ohai_versions": [
-
-  ],
-  "gems": [
-
-  ]
-}