Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/redis/recipes/server.rb

@@ -1,38 +0,0 @@
-#
-# Cookbook Name:: redis
-# Recipe:: server
-#
-
-include_recipe "redis::default"
-
-package "redis-server" do
-  action node["redis"]["auto_upgrade"] ? :upgrade : :install
-end
-
-directory node["redis"]["dir"] do
-  owner "redis"
-  group "redis"
-  mode "0750"
-  recursive true
-end
-
-service "redis-server" do
-  supports restart: true
-  action [:enable, :start]
-end
-
-template "/etc/redis/redis.conf" do
-  source "redis.conf.erb"
-  owner  "root"
-  group  "root"
-  mode   "0644"
-  notifies :restart, "service[redis-server]"
-end
-
-template "/etc/default/redis-server" do
-  source "default_redis-server.erb"
-  owner  "root"
-  group  "root"
-  mode   "0644"
-  notifies :restart, "service[redis-server]"
-end