Remove unused code

app/controllers/admin/settings_controller.rb

@@ -1,7 +1,6 @@
 module Admin
   class SettingsController < BaseController
     load_and_authorize_resource
-    before_action :set_setting_group, only: [:show, :update]
 
     def index
       @settings = Setting.unscoped
@@ -22,30 +21,9 @@ module Admin
       end
     end
 
-    def show;
-    end
-
-    def update
-      if @setting_group.update(setting_group_params)
-        flash[:notice] = I18n.t('setting_updated')
-        redirect_to [:admin, @setting_group]
-      else
-        flash[:alert] = I18n.t('failed_to_update_setting')
-        render 'show'
-      end
-    end
-
     private
 
-    def set_setting_group
+    def casted_settings
-      @setting_group = SettingGroup.find(params[:id])
-    end
-
-    def setting_group_params
-      params.require(:setting_group).permit(settings_attributes: [:value, :id])
-    end
-
-    def casted_settings # rubocop:disable Metrics/MethodLength
       settings = {}
 
       ints = [

config/routes.rb

@@ -220,7 +220,7 @@ Rails.application.routes.draw do
       end
     end
 
-    resources :settings
+    resources :settings, only: %i[index create]
 
     resources :blocked_domains do
       member do