Add tests for explicit engines.

1 files changed, 1 insertions, 9 deletions

diff --git a/railties/lib/rails/railtie.rb b/railties/lib/rails/railtie.rb
index 3cf358d75f..c038d0ac70 100644
--- a/railties/lib/rails/railtie.rb
+++ b/railties/lib/rails/railtie.rb
@@ -17,7 +17,7 @@ module Rails
 
       def inherited(base)
         unless abstract_railtie?(base)
-          base.send(:include, self::Configurable) if add_configurable?(base)
+          base.send(:include, self::Configurable)
           subclasses << base
         end
       end
@@ -53,14 +53,6 @@ module Rails
       def abstract_railtie?(base)
         ABSTRACT_RAILTIES.include?(base.name)
       end
-
-      # Just add configurable behavior if a Configurable module is defined
-      # and the class is a direct child from self. This is required to avoid
-      # application or plugins getting class configuration method from Railties
-      # and/or Engines.
-      def add_configurable?(base)
-        defined?(self::Configurable) && base.ancestors[1] == self
-      end
     end
 
     def rake_tasks