remove BalancePolicy

app/policies/balance_policy.rb

@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-class BalancePolicy < ApplicationPolicy
-  class Scope < Scope
-    def resolve
-      return scope.none if user.nil?
-
-      scope.where(user_id: user.id)
-    end
-  end
-end