users: remove no_flagging and no_feedback permissions.

app/controllers/user_feedbacks_controller.rb

@@ -1,6 +1,5 @@
 class UserFeedbacksController < ApplicationController
   before_action :gold_only, :only => [:new, :edit, :create, :update]
-  before_action :check_no_feedback, only: [:new, :edit, :create, :update]
   respond_to :html, :xml, :json, :js
 
   def new
@@ -42,12 +41,6 @@ class UserFeedbacksController < ApplicationController
     raise User::PrivilegeError unless user_feedback.editable_by?(CurrentUser.user)
   end
 
-  def check_no_feedback
-    if CurrentUser.no_feedback?
-      raise User::PrivilegeError
-    end
-  end
-
   def user_feedback_params(context, user_feedback = nil)
     permitted_params = %i[body category]
     permitted_params += %i[user_id user_name] if context == :create