Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/ark/libraries/resource_deprecations.rb

@@ -1,33 +0,0 @@
-module Ark
-  class ResourceDeprecations
-    def self.on(resource)
-      new(resource).warnings
-    end
-
-    def initialize(resource)
-      @resource = resource
-    end
-
-    attr_reader :resource
-
-    def warnings
-      applicable_deprecrations.map { |_, message| message }
-    end
-
-    def applicable_deprecrations
-      deprecations.select { |condition, _| send(condition) }
-    end
-
-    def deprecations
-      { strip_leading_dir_feature: strip_leading_dir_feature_message }
-    end
-
-    def strip_leading_dir_feature
-      [true, false].include?(resource.strip_leading_dir)
-    end
-
-    def strip_leading_dir_feature_message
-      'strip_leading_dir attribute was deprecated. Use strip_components instead.'
-    end
-  end
-end