Upgrader: Do not keep installing config.yml files

The configuration objects should be able to give good upgrade
information by just using them, as shown in the previous commit.

lib/alchemy/upgrader.rb

@@ -7,24 +7,5 @@ class Upgrader
     extend Alchemy::Shell
 
     Dir["#{File.dirname(__FILE__)}/upgrader/*.rb"].sort.each { |f| require f }
-
-    class << self
-      def copy_new_config_file
-        desc "Copy configuration file."
-        config_file = Rails.root.join("config/alchemy/config.yml")
-        default_config = File.join(File.dirname(__FILE__), "../../config/alchemy/config.yml")
-        if !File.exist? config_file
-          log "No configuration file found. Creating it."
-          FileUtils.cp default_config, Rails.root.join("config/alchemy/config.yml")
-        elsif FileUtils.identical? default_config, config_file
-          log "Configuration file already present.", :skip
-        else
-          log "Custom configuration file found."
-          FileUtils.cp default_config, Rails.root.join("config/alchemy/config.yml.defaults")
-          log "Copied new default configuration file."
-          todo "Check the default configuration file (./config/alchemy/config.yml.defaults) for new configuration options and insert them into your config file.", "Configuration has changed"
-        end
-      end
-    end
   end
 end

lib/generators/alchemy/install/install_generator.rb

@@ -53,10 +53,6 @@ def mount
         install_tasks.inject_routes(options[:auto_accept])
       end
 
-      def copy_config
-        copy_file "#{gem_config_path}/config.yml", app_config_path.join("alchemy", "config.yml")
-      end
-
       def copy_yml_files
         %w[elements page_layouts menus].each do |file|
           template "#{__dir__}/templates/#{file}.yml.tt", app_config_path.join("alchemy", "#{file}.yml")

lib/tasks/alchemy/upgrade.rake

@@ -23,10 +23,5 @@ namespace :alchemy do
       "alchemy:install:migrations",
       "db:migrate"
     ]
-
-    desc "Alchemy Upgrader: Copy configuration file."
-    task config: [:environment] do
-      Alchemy::Upgrader.copy_new_config_file
-    end
   end
 end