Don't generate #decorates.

We don't want to use that anymore.

lib/generators/decorator/templates/decorator.rb

@@ -1,6 +1,5 @@
 <% module_namespacing  do -%>
 class <%= class_name %>Decorator < <%= parent_class_name %>
-  decorates :<%= singular_name %>
 
   # Accessing Helpers
   #   You can access any helper via a proxy

spec/generators/decorator/decorator_generator_spec.rb

@@ -16,7 +16,6 @@ describe Rails::Generators::DecoratorGenerator do
       subject { file('app/decorators/your_model_decorator.rb') }
       it { should exist }
       it { should contain "class YourModelDecorator < Draper::Decorator" }
-      it { should contain "decorates :your_model" }
     end
   end
 

spec/performance/decorators.rb

@@ -1,6 +1,5 @@
 require "./performance/models"
 class ProductDecorator < Draper::Decorator
-  decorates :product
 
   def awesome_title
     "Awesome Title"
@@ -22,7 +21,6 @@ class ProductDecorator < Draper::Decorator
 end
 
 class FastProductDecorator < Draper::Decorator
-  decorates :product
 
   def awesome_title
     "Awesome Title"