small cleanup

lib/parfait/vool_method.rb

@@ -22,19 +22,10 @@ module Parfait
       raise "source must be vool" unless source.is_a?(Vool::Statement)
     end
 
-    def normalize_source
-      @source = yield @source
-    end
-
     def create_parfait_method( type )
       raise "create_method #{type.inspect} is not a Type" unless type.is_a? Parfait::Type
       type.create_method( @name , @args_type , @frame_type)
     end
 
-    def create_tmp
-      tmp_name = "tmp_#{@frame_type.instance_length}".to_sym
-      @frame_type = @frame_type.add_instance_variable( tmp_name , :Object )
-      tmp_name
-    end
   end
 end