Apply Rubocop Style/RedundantConstantBase (#23463)

.rubocop_todo.yml

@@ -3194,14 +3194,6 @@ Style/RedundantBegin:
     - 'lib/sanitize_ext/sanitize_config.rb'
     - 'lib/tasks/db.rake'
 
-# Offense count: 3
-# This cop supports safe autocorrection (--autocorrect).
-Style/RedundantConstantBase:
-  Exclude:
-    - 'config.ru'
-    - 'lib/tasks/statistics.rake'
-    - 'spec/rails_helper.rb'
-
 # Offense count: 16
 # This cop supports safe autocorrection (--autocorrect).
 Style/RedundantRegexpCharacterClass:

config.ru

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 # This file is used by Rack-based servers to start the application.
 
-require ::File.expand_path('config/environment', __dir__)
+require File.expand_path('config/environment', __dir__)
 run Rails.application

lib/tasks/statistics.rake

@@ -13,7 +13,7 @@ namespace :mastodon do
       %w(Validators app/validators),
       %w(Workers app/workers),
     ].each do |name, dir|
-      ::STATS_DIRECTORIES << [name, Rails.root.join(dir)]
+      STATS_DIRECTORIES << [name, Rails.root.join(dir)]
     end
   end
 end

spec/rails_helper.rb

@@ -33,7 +33,7 @@ Devise::Test::ControllerHelpers.module_eval do
 end
 
 RSpec.configure do |config|
-  config.fixture_path = "#{::Rails.root}/spec/fixtures"
+  config.fixture_path = "#{Rails.root}/spec/fixtures"
   config.use_transactional_fixtures = true
   config.order = 'random'
   config.infer_spec_type_from_file_location!