diff --git a/promotions/app/models/solidus_friendly_promotions/discountable/line_item.rb b/promotions/app/models/solidus_friendly_promotions/discountable/line_item.rb
deleted file mode 100644
index f732710d..00000000
--- a/promotions/app/models/solidus_friendly_promotions/discountable/line_item.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-module SolidusFriendlyPromotions
-  module Discountable
-    class LineItem < SimpleDelegator
-      attr_reader :discounts, :order
-
-      def initialize(line_item, order:)
-        super(line_item)
-        @order = order
-        @discounts = []
-      end
-
-      def line_item
-        __getobj__
-      end
-
-      def discountable_amount
-        amount + discounts.sum(&:amount)
-      end
-    end
-  end
-end
diff --git a/promotions/app/models/solidus_friendly_promotions/discountable/order.rb b/promotions/app/models/solidus_friendly_promotions/discountable/order.rb
deleted file mode 100644
index ef2bd8c1..00000000
--- a/promotions/app/models/solidus_friendly_promotions/discountable/order.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# frozen_string_literal: true
-
-module SolidusFriendlyPromotions
-  module Discountable
-    class Order < SimpleDelegator
-      attr_reader :line_items, :shipments
-
-      def initialize(order)
-        super
-        @line_items = order.line_items.map { |line_item| LineItem.new(line_item, order: self) }
-        @shipments = order.shipments.map { |shipment| Shipment.new(shipment, order: self) }
-      end
-
-      def order
-        __getobj__
-      end
-    end
-  end
-end
diff --git a/promotions/app/models/solidus_friendly_promotions/discountable/shipment.rb b/promotions/app/models/solidus_friendly_promotions/discountable/shipment.rb
deleted file mode 100644
index e16c5a96..00000000
--- a/promotions/app/models/solidus_friendly_promotions/discountable/shipment.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# frozen_string_literal: true
-
-module SolidusFriendlyPromotions
-  module Discountable
-    class Shipment < SimpleDelegator
-      attr_reader :discounts, :shipping_rates, :order
-
-      def initialize(shipment, order:)
-        super(shipment)
-        @order = order
-        @discounts = []
-        @shipping_rates = shipment.shipping_rates.map { |shipping_rate| ShippingRate.new(shipping_rate, shipment: self) }
-      end
-
-      def shipment
-        __getobj__
-      end
-
-      def discountable_amount
-        amount + discounts.sum(&:amount)
-      end
-    end
-  end
-end
diff --git a/promotions/app/models/solidus_friendly_promotions/discountable/shipping_rate.rb b/promotions/app/models/solidus_friendly_promotions/discountable/shipping_rate.rb
deleted file mode 100644
index 77a6ca46..00000000
--- a/promotions/app/models/solidus_friendly_promotions/discountable/shipping_rate.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-module SolidusFriendlyPromotions
-  module Discountable
-    class ShippingRate < SimpleDelegator
-      attr_reader :discounts, :shipment
-
-      def initialize(shipping_rate, shipment:)
-        super(shipping_rate)
-        @shipment = shipment
-        @discounts = []
-      end
-
-      def shipping_rate
-        __getobj__
-      end
-
-      def discountable_amount
-        amount + discounts.sum(&:amount)
-      end
-    end
-  end
-end
diff --git a/promotions/spec/models/solidus_friendly_promotions/discountable/line_item_spec.rb b/promotions/spec/models/solidus_friendly_promotions/discountable/line_item_spec.rb
deleted file mode 100644
index c107b821..00000000
--- a/promotions/spec/models/solidus_friendly_promotions/discountable/line_item_spec.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-# frozen_string_literal: true
-
-require "spec_helper"
-
-RSpec.describe SolidusFriendlyPromotions::Discountable::LineItem do
-  let(:discountable_order) { double(SolidusFriendlyPromotions::Discountable::Order) }
-  let(:spree_line_item) { build(:line_item, price: 10, quantity: 2) }
-
-  subject(:discountable_line_item) { described_class.new(spree_line_item, order: discountable_order) }
-
-  describe "#order" do
-    subject { discountable_line_item.order }
-
-    it { is_expected.to eq(discountable_order) }
-  end
-
-  describe "#discountable_amount" do
-    subject(:discountable_amount) { discountable_line_item.discountable_amount }
-
-    context "with no discounts" do
-      it { is_expected.to eq(20) }
-    end
-
-    context "with discounts" do
-      let(:discount) { SolidusFriendlyPromotions::ItemDiscount.new(amount: -4) }
-
-      before do
-        discountable_line_item.discounts << discount
-      end
-
-      it { is_expected.to eq(16) }
-    end
-  end
-end
diff --git a/promotions/spec/models/solidus_friendly_promotions/discountable/order_spec.rb b/promotions/spec/models/solidus_friendly_promotions/discountable/order_spec.rb
deleted file mode 100644
index 637b8a05..00000000
--- a/promotions/spec/models/solidus_friendly_promotions/discountable/order_spec.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# frozen_string_literal: true
-
-require "spec_helper"
-
-RSpec.describe SolidusFriendlyPromotions::Discountable::Order do
-  subject(:discountable_order) { described_class.new(spree_order) }
-
-  let(:spree_order) { Spree::Order.new }
-
-  describe "#line_items" do
-    let(:spree_order) { create(:order_with_line_items) }
-    subject(:line_items) { discountable_order.line_items }
-
-    specify "are converted into Discountable Line Items" do
-      line_items.each do |line_item|
-        expect(line_item).to be_a(SolidusFriendlyPromotions::Discountable::LineItem)
-      end
-    end
-  end
-
-  describe "#shipments" do
-    let(:spree_order) { create(:order_ready_to_ship) }
-    subject(:shipments) { discountable_order.shipments }
-
-    specify "are converted into Discountable Shipments" do
-      shipments.each do |shipment|
-        expect(shipment).to be_a(SolidusFriendlyPromotions::Discountable::Shipment)
-      end
-    end
-  end
-
-  describe "delegation" do
-    let(:spree_order) { Spree::Order.new(email: "yoda@example.com") }
-
-    it "forwards order attributes" do
-      expect(subject.email).to eq("yoda@example.com")
-    end
-  end
-end
diff --git a/promotions/spec/models/solidus_friendly_promotions/discountable/shipment_spec.rb b/promotions/spec/models/solidus_friendly_promotions/discountable/shipment_spec.rb
deleted file mode 100644
index 96e58f1f..00000000
--- a/promotions/spec/models/solidus_friendly_promotions/discountable/shipment_spec.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# frozen_string_literal: true
-
-require "spec_helper"
-
-RSpec.describe SolidusFriendlyPromotions::Discountable::Shipment do
-  let(:discountable_order) { double(SolidusFriendlyPromotions::Discountable::Order) }
-
-  let(:spree_shipment) { build(:shipment, amount: 20) }
-
-  subject(:discountable_shipment) { described_class.new(spree_shipment, order: discountable_order) }
-
-  describe "#order" do
-    subject { discountable_shipment.order }
-
-    it { is_expected.to eq(discountable_order) }
-  end
-
-  describe "#discountable_amount" do
-    subject(:discountable_amount) { discountable_shipment.discountable_amount }
-
-    context "with no discounts" do
-      it { is_expected.to eq(20) }
-    end
-
-    context "with discounts" do
-      let(:discount) { SolidusFriendlyPromotions::ItemDiscount.new(amount: -4) }
-
-      before do
-        discountable_shipment.discounts << discount
-      end
-
-      it { is_expected.to eq(16) }
-    end
-  end
-
-  describe "#shipping_rates" do
-    subject(:shipping_rates) { discountable_shipment.shipping_rates }
-
-    specify "are converted into Discountable Shipments" do
-      shipping_rates.each do |shipping_rate|
-        expect(shipping_rate).to be_a(SolidusFriendlyPromotions::Discountable::ShippingRate)
-      end
-    end
-  end
-end
diff --git a/promotions/spec/models/solidus_friendly_promotions/discountable/shipping_rate_spec.rb b/promotions/spec/models/solidus_friendly_promotions/discountable/shipping_rate_spec.rb
deleted file mode 100644
index f6c6d778..00000000
--- a/promotions/spec/models/solidus_friendly_promotions/discountable/shipping_rate_spec.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# frozen_string_literal: true
-
-require "spec_helper"
-
-RSpec.describe SolidusFriendlyPromotions::Discountable::ShippingRate do
-  let(:discountable_shipment) { double(SolidusFriendlyPromotions::Discountable::Shipment) }
-
-  let(:spree_shipping_rate) { build(:shipping_rate, amount: 20) }
-
-  subject(:discountable_shipping_rate) { described_class.new(spree_shipping_rate, shipment: discountable_shipment) }
-
-  describe "#shipment" do
-    subject { discountable_shipping_rate.shipment }
-
-    it { is_expected.to eq(discountable_shipment) }
-  end
-
-  describe "#discountable_amount" do
-    subject(:discountable_amount) { discountable_shipping_rate.discountable_amount }
-
-    context "with no discounts" do
-      it { is_expected.to eq(20) }
-    end
-
-    context "with discounts" do
-      let(:discount) { SolidusFriendlyPromotions::ItemDiscount.new(amount: -4) }
-
-      before do
-        discountable_shipping_rate.discounts << discount
-      end
-
-      it { is_expected.to eq(16) }
-    end
-  end
-end