Merge pull request #1136 from masato-bkn/remove_style_guide_link_from_rails_default_scope

[Doc] Remove missing style guide link from `Rails/DefaultScope`

Author: koic

config/default.yml

@@ -338,7 +338,6 @@ Rails/Date:
 
 Rails/DefaultScope:
   Description: 'Avoid use of `default_scope`.'
-  StyleGuide: 'https://rails.rubystyle.guide#avoid-default-scope'
   Enabled: false
   VersionAdded: '2.7'