Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/git/resources/config.rb

@@ -1,49 +0,0 @@
-property :key, String, name_attribute: true
-property :value, String
-property :scope, equal_to: %w(local global system), default: 'global', desired_state: false
-property :path, String, desired_state: false
-property :user, String, desired_state: false
-property :group, String, desired_state: false
-property :options, String, desired_state: false
-
-attr_accessor :exists
-
-require 'mixlib/shellout'
-
-def initialize(*args)
-  super
-
-  @run_context.include_recipe 'git'
-end
-
-load_current_value do
-  cmd_env = user ? { 'USER' => user, 'HOME' => ::Dir.home(user) } : nil
-  config_vals = Mixlib::ShellOut.new("git config --get --#{scope} #{key}", user: user, group: group, cwd: path, env: cmd_env)
-  config_vals.run_command
-  if config_vals.stdout.empty?
-    value nil
-  else
-    value config_vals.stdout.chomp
-  end
-end
-
-action :set do
-  converge_if_changed do
-    execute "#{config_cmd} #{new_resource.key} \"#{new_resource.value}\" #{new_resource.options}".rstrip do
-      cwd new_resource.path
-      user new_resource.user
-      group new_resource.group
-      environment cmd_env
-    end
-  end
-end
-
-action_class.class_eval do
-  def config_cmd
-    "git config --#{new_resource.scope}"
-  end
-
-  def cmd_env
-    new_resource.user ? { 'USER' => new_resource.user, 'HOME' => ::Dir.home(new_resource.user) } : nil
-  end
-end