remove paginator concern

app/controllers/concerns/paginator.rb

-module Paginator
-  extend ActiveSupport::Concern
-
-  def limit
-    return 50 if params[:limit].blank?
-    params[:limit].to_i
-  end
-
-  def offset
-    return 0 if params[:offset].blank?
-    params[:offset].to_i
-  end
-
-end