Remove unused method associated with android_update_metadata

Author: mokagio

lib/fastlane/plugin/wpmreleasetoolkit/helper/android/android_git_helper.rb

@@ -27,26 +27,6 @@ def self.commit_version_bump
             )
           end
         end
-
-        # Calls the `tools/update-translations.sh` script from the project repo, then lint them using the provided gradle task
-        #
-        # Deprecated. Use the `android_download_translations` action instead.
-        #
-        # @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)
-        #
-        # @param [String] validate_translation_command The name of the gradle task to run to validate the translations
-        #
-        # @todo Remove this once every client has migrated to `android_download_translations` and we got rid of that legacy action.
-        #
-        def self.update_metadata(validate_translation_command)
-          Action.sh('./tools/update-translations.sh')
-          Action.sh('git', 'submodule', 'update', '--init', '--recursive')
-          Action.sh('./gradlew', validate_translation_command)
-
-          res_dir = File.join(ENV['PROJECT_ROOT_FOLDER'], ENV['PROJECT_NAME'], 'src', 'main', 'res')
-          Fastlane::Helper::GitHelper.commit(message: 'Update translations', files: res_dir, push: true)
-        end
       end
     end
   end