Correct some missing features on the ExportSupportersCompletedJob addition

lib/job_types/export_supporters_completed_job.rb

@@ -1,15 +0,0 @@
-# frozen_string_literal: true
-
-module JobTypes
-  class ExportSupportersCompletedJob < EmailJob
-    attr_reader :export
-
-    def initialize(export)
-      @export = export
-    end
-
-    def perform
-      ExportMailer.export_supporters_completed_notification(@export).deliver
-    end
-  end
-end

spec/lib/export/export_supporters_spec.rb

@@ -171,7 +171,6 @@ describe ExportSupporters do
     it 'uploads as expected' do
       Timecop.freeze(2020, 4, 5) do
         @export = create(:export, user: @user, created_at: Time.now, updated_at: Time.now)
-        expect_email_queued.with(JobTypes::ExportSupportersCompletedJob, @export)
         Timecop.freeze(2020, 4, 6, 1, 2, 3) do
           expect {
             ExportSupporters.run_export(@nonprofit.id, { root_url: 'https://localhost:8080/' }.to_json, @user.id, @export.id)