Remove unecessary config_accessors.

1 files changed, 1 insertions, 7 deletions

diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb
index d95770c049..9019c07bca 100644
--- a/actionpack/lib/abstract_controller/rendering.rb
+++ b/actionpack/lib/abstract_controller/rendering.rb
@@ -35,7 +35,7 @@ module AbstractController
     include AbstractController::ViewPaths
 
     included do
-      config_accessor :protected_instance_variables, :instance_reader => false
+      class_attribute :protected_instance_variables
       self.protected_instance_variables = []
     end
 
@@ -59,12 +59,6 @@ module AbstractController
 
     attr_internal_writer :view_context_class
 
-    # Explicitly define protected_instance_variables so it can be
-    # inherited and overwritten by other modules if needed.
-    def protected_instance_variables
-      config.protected_instance_variables
-    end
-
     def view_context_class
       @_view_context_class ||= self.class.view_context_class
     end