remove coinbase references

app/controllers/user_upgrades_controller.rb

@@ -1,14 +1,12 @@
 class UserUpgradesController < ApplicationController
   before_filter :member_only, :only => [:new, :show]
-  helper_method :encrypt_custom, :coinbase, :user
+  helper_method :user
   force_ssl :if => :ssl_enabled?
   skip_before_action :verify_authenticity_token, only: [:create]
 
   def create
     if params[:stripeToken]
       create_stripe
-    elsif params[:order]
-      create_coinbase
     end
   end
 
@@ -21,14 +19,6 @@ class UserUpgradesController < ApplicationController
   def show
   end
 
-  def encrypt_custom(level)
-    crypt.encrypt_and_sign("#{user.id},#{level}")
-  end
-
-  def coinbase
-    @coinbase_api ||= Coinbase::Client.new(Danbooru.config.coinbase_api_key, Danbooru.config.coinbase_api_secret)
-  end
-
   def user
     if params[:user_id]
       User.find(params[:user_id])
@@ -71,29 +61,6 @@ class UserUpgradesController < ApplicationController
     redirect_to user_upgrade_path
   end
 
-  def create_coinbase
-    if params[:order][:status] == "completed"
-      user_id, level = decrypt_custom
-      member = User.find(user_id)
-
-      if member.level < User::Levels::PLATINUM && level >= User::Levels::GOLD && level <= User::Levels::PLATINUM
-        CurrentUser.scoped(User.admins.first, "127.0.0.1") do
-          member.promote_to!(level, :skip_feedback => true)
-        end
-      end
-    end
-
-    render :nothing => true
-  end
-
-  def decrypt_custom
-    crypt.decrypt_and_verify(params[:order][:custom]).split(/,/).map(&:to_i)
-  end
-
-  def crypt
-    ActiveSupport::MessageEncryptor.new(Danbooru.config.coinbase_secret)
-  end
-
   def ssl_enabled?
     !Rails.env.development? && !Rails.env.test?
   end