Revert usage of delegate method (#522)

* Revert usage of delegate method

* Update changelog

Author: pacso

CHANGELOG.md

@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Indonesian translations. ([#505](https://github.com/seejohnrun/ice_cube/pull/505)) by [@achmiral](https://github.com/achmiral)
 
+### Changed
+- Removed use of `delegate` method added in [66f1d797](https://github.com/ice-cube-ruby/ice_cube/commit/66f1d797092734563bfabd2132c024c7d087f683) , reverting to previous implementation. ([#522](https://github.com/ice-cube-ruby/ice_cube/pull/522))  by [@pacso](https://github.com/pacso)
+
 ### Fixed
 - Fix for weekly interval results when requesting `occurrences_between` on a narrow range ([#487](https://github.com/seejohnrun/ice_cube/pull/487)) by [@jakebrady5](https://github.com/jakebrady5)
 - When using a rule with hour_of_day validations, and asking for occurrences on the day that DST skips forward, valid occurrences would be missed. ([#464](https://github.com/seejohnrun/ice_cube/pull/464)) by [@jakebrady5](https://github.com/jakebrady5)

lib/ice_cube/i18n.rb

@@ -4,8 +4,12 @@ module IceCube
   module I18n
     LOCALES_PATH = File.expand_path(File.join("..", "..", "..", "config", "locales"), __FILE__)
 
-    class << self
-      delegate :t, :l, to: :backend
+    def self.t(*args, **kwargs)
+      backend.t(*args, **kwargs)
+    end
+
+    def self.l(*args, **kwargs)
+      backend.l(*args, **kwargs)
     end
 
     def self.backend