DEV: minor avoid ruby and rubocop warnings

DEV: minor avoid ruby and rubocop warnings

diff --git a/.rubocop.yml b/.rubocop.yml
index f704310..3d575f3 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,3 +3,6 @@ inherit_gem:
 
 RSpec/MessageSpies:
   Enabled: false
+
+AllCops:
+  SuggestExtensions: false
diff --git a/lib/mini_profiler/config.rb b/lib/mini_profiler/config.rb
index 6cc865b..b909cbd 100644
--- a/lib/mini_profiler/config.rb
+++ b/lib/mini_profiler/config.rb
@@ -86,6 +86,8 @@ module Rack
 
       attr_reader :assets_url
 
+      # redefined - since the accessor defines it first
+      undef :authorization_mode=
       def authorization_mode=(mode)
         if mode == :whitelist
           warn "[DEPRECATION] `:whitelist` authorization mode is deprecated. Please use `:allow_authorized` instead."

GitHub sha: 0a31c78e