Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/redis/test/integration/default/serverspec/default_spec.rb

@@ -1,41 +0,0 @@
-require "serverspec"
-
-set :backend, :exec
-
-describe "Redis client installation" do
-  describe package("redis-tools") do
-    it { should be_installed }
-  end
-end
-
-describe "Redis server installation" do
-  describe package("redis-server") do
-    it { should be_installed }
-  end
-
-  describe file("/var/lib/redis") do
-    it { should be_a_directory }
-    it { should be_owned_by "redis" }
-    it { should be_grouped_into "redis" }
-    it { should be_mode 750 }
-  end
-
-  describe service("redis-server") do
-    it { should be_enabled }
-    it { should be_running }
-  end
-
-  describe file("/etc/redis/redis.conf") do
-    it { should be_a_file }
-    it { should be_owned_by "root" }
-    it { should be_grouped_into "root" }
-    it { should be_mode 644 }
-  end
-
-  describe file("/etc/default/redis-server") do
-    it { should be_a_file }
-    it { should be_owned_by "root" }
-    it { should be_grouped_into "root" }
-    it { should be_mode 644 }
-  end
-end