clean shop code

app/controllers/settings/membership_settings_controller.rb

@@ -27,7 +27,6 @@ class Settings::MembershipSettingsController < ApplicationController
   def create
      
     @settings_membership_setting = MembershipSetting.new(settings_membership_setting_params)
-    @settings_membership_setting.shop_code = @shop.shop_code
     respond_to do |format|
       if @settings_membership_setting.save
         format.html { redirect_to settings_membership_settings_path, notice: 'Membership setting was successfully created.' }