Remove deprecated rails engine config

CHANGELOG.md

@@ -7,7 +7,11 @@ recommendations of [keepachangelog.com](http://keepachangelog.com/).
 
 ### Breaking Changes
 
-- None
+- In the PT rails engine, the `paper_trail` configuration has been
+  removed. This configuration object was deprecated in 10.2.0. Please review
+  docs section [2.d. Turning PaperTrail
+  Off](https://github.com/paper-trail-gem/paper_trail/#2d-turning-papertrail-off)
+  for alternatives.
 
 ### Added
 

lib/paper_trail/frameworks/rails/engine.rb

@@ -4,42 +4,7 @@ module PaperTrail
   module Rails
     # See http://guides.rubyonrails.org/engines.html
     class Engine < ::Rails::Engine
-      DPR_CONFIG_ENABLED = <<~EOS.squish.freeze
-        The rails configuration option config.paper_trail.enabled is deprecated.
-        Please use PaperTrail.enabled= instead. People were getting confused
-        that PT has both, specifically regarding *when* each was happening. If
-        you'd like to keep config.paper_trail, join the discussion at
-        https://github.com/paper-trail-gem/paper_trail/pull/1176
-      EOS
-      private_constant :DPR_CONFIG_ENABLED
-      DPR_RUDELY_ENABLING = <<~EOS.squish.freeze
-        At some point early in the rails boot process, you have set
-        PaperTrail.enabled = false. PT's rails engine is now overriding your
-        setting, and setting it to true. We're not sure why, but this is how PT
-        has worked since 5.0, when the config.paper_trail.enabled option was
-        introduced. This is now deprecated. In the future, PT will not override
-        your setting. See
-        https://github.com/paper-trail-gem/paper_trail/pull/1176 for discussion.
-      EOS
-      private_constant :DPR_RUDELY_ENABLING
-
       paths["app/models"] << "lib/paper_trail/frameworks/active_record/models"
-
-      # --- Begin deprecated section ---
-      config.paper_trail = ActiveSupport::OrderedOptions.new
-      initializer "paper_trail.initialisation" do |app|
-        enable = app.config.paper_trail[:enabled]
-        if enable.nil?
-          unless PaperTrail.enabled?
-            ::ActiveSupport::Deprecation.warn(DPR_RUDELY_ENABLING)
-            PaperTrail.enabled = true
-          end
-        else
-          ::ActiveSupport::Deprecation.warn(DPR_CONFIG_ENABLED)
-          PaperTrail.enabled = enable
-        end
-      end
-      # --- End deprecated section ---
     end
   end
 end