Remove ios_update_metadata Action and ios_git_helper's update_metadata(), to remove all occurrences of the deprecated Scripts/update-translations.rb script

Author: iangmaia

lib/fastlane/plugin/wpmreleasetoolkit/actions/ios/ios_update_metadata.rb

@@ -44,20 +44,6 @@ def self.localize_project
           Fastlane::Helper::GitHelper.commit(message: 'Update strings for localization', files: strings_files, push: true) || UI.message('No new strings, skipping commit')
         end
 
-        # Call the `Scripts/update-translations.rb` script from the host project folder
-        #
-        # @env PROJECT_ROOT_FOLDER The path to the git root of the project
-        # @env PROJECT_NAME The name of the directory containing the project code (especially containing the `build.gradle` file)
-        #
-        # @todo Migrate the scripts, currently in each host repo and called by this method, to be helpers and actions
-        #       in the release-toolkit instead, and move this code away from `ios_git_helper`.
-        #
-        def self.update_metadata
-          Action.sh("cd #{get_project_root()} && ./Scripts/update-translations.rb")
-
-          Fastlane::Helper::GitHelper.commit(message: 'Update translations', files: strings_files, push: false)
-        end
-
         def self.strings_files
           project_root = get_project_root()
           project_name = get_project_name()