1 files changed, 0 insertions, 44 deletions
diff --git a/lib/gitlab/background_migration/schedule_diff_files_deletion.rb b/lib/gitlab/background_migration/schedule_diff_files_deletion.rb
deleted file mode 100644
index 609cf19187c..00000000000
--- a/lib/gitlab/background_migration/schedule_diff_files_deletion.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-# frozen_string_literal: true
-# rubocop:disable Style/Documentation
-
-module Gitlab
-  module BackgroundMigration
-    class ScheduleDiffFilesDeletion
-      class MergeRequestDiff < ActiveRecord::Base
-        self.table_name = 'merge_request_diffs'
-
-        belongs_to :merge_request
-
-        include EachBatch
-      end
-
-      DIFF_BATCH_SIZE = 5_000
-      INTERVAL = 5.minutes
-      MIGRATION = 'DeleteDiffFiles'
-
-      def perform
-        diffs = MergeRequestDiff
-          .from("(#{diffs_collection.to_sql}) merge_request_diffs")
-          .where('merge_request_diffs.id != merge_request_diffs.latest_merge_request_diff_id')
-          .select(:id)
-
-        diffs.each_batch(of: DIFF_BATCH_SIZE) do |relation, index|
-          ids = relation.pluck(:id)
-
-          BackgroundMigrationWorker.perform_in(index * INTERVAL, MIGRATION, [ids])
-        end
-      end
-
-      private
-
-      def diffs_collection
-        MergeRequestDiff
-          .joins(:merge_request)
-          .where("merge_requests.state = 'merged'")
-          .where('merge_requests.latest_merge_request_diff_id IS NOT NULL')
-          .where("merge_request_diffs.state NOT IN ('without_files', 'empty')")
-          .select('merge_requests.latest_merge_request_diff_id, merge_request_diffs.id')
-      end
-    end
-  end
-end