Merge pull request #318 from Earlopain/enable-undefined-config

Enable `InternalAffairs/UndefinedConfig`

Author: koic

.rubocop.yml

@@ -15,10 +15,6 @@ AllCops:
 InternalAffairs/NodeMatcherDirective:
   Enabled: false
 
-# FIXME: Workaround for a false positive caused by this cop when using `bundle exec rake`.
-InternalAffairs/UndefinedConfig:
-  Enabled: false
-
 Naming/PredicateName:
   # Method define macros for dynamically generated method.
   MethodDefinitionMacros: