Revert "Use Zeitwerk to load gem"

This reverts commit 7e94d48.

lib/redis_web_manager.rb

@@ -1,15 +1,15 @@
 # frozen_string_literal: true
 
+require 'redis_web_manager/engine'
+require 'redis_web_manager/base'
+require 'redis_web_manager/action'
+require 'redis_web_manager/connection'
+require 'redis_web_manager/info'
+require 'redis_web_manager/data'
 require 'active_support/time'
 require 'redis'
 
-require 'zeitwerk'
-loader = Zeitwerk::Loader.for_gem
-loader.setup
-
 module RedisWebManager
-  require 'redis_web_manager/engine' if defined?(Rails)
-
   mattr_accessor :redises, default: { default: Redis.new }
   mattr_accessor :lifespan, default: 15.days
   mattr_accessor :authenticate, default: nil

redis_web_manager.gemspec

@@ -21,7 +21,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'rails', '>= 5.2', '< 8'
   s.add_runtime_dependency 'redis', '>= 4.1.0', '< 6'
   s.add_runtime_dependency 'sprockets-rails', '~> 3.4.2'
-  s.add_runtime_dependency 'zeitwerk'
 
   s.add_development_dependency 'appraisal'
   s.add_development_dependency 'debug'