Revert "Merge branch '54924-clean-up-data' into 'master'"

This reverts commit c9ecc71ab91b0b55f9aba632f9e7b305191a458c, reversing
changes made to c3c8dbf8fa4090bb090071d320a31857eb709d3d.

1 files changed, 0 insertions, 33 deletions

diff --git a/db/migrate/20190228092516_clean_up_noteable_id_for_notes_on_commits.rb b/db/migrate/20190228092516_clean_up_noteable_id_for_notes_on_commits.rb
deleted file mode 100644
index fe129e8f4dc..00000000000
--- a/db/migrate/20190228092516_clean_up_noteable_id_for_notes_on_commits.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# frozen_string_literal: true
-
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanUpNoteableIdForNotesOnCommits < ActiveRecord::Migration[5.0]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  TEMP_INDEX_NAME = 'index_notes_on_commit_with_null_noteable_id'
-
-  disable_ddl_transaction!
-
-  def up
-    remove_concurrent_index_by_name(:notes, TEMP_INDEX_NAME)
-
-    add_concurrent_index(:notes, :id, where: "noteable_type = 'Commit' AND noteable_id IS NOT NULL", name: TEMP_INDEX_NAME)
-
-    # rubocop:disable Migration/UpdateLargeTable
-    update_column_in_batches(:notes, :noteable_id, nil) do |table, query|
-      query.where(
-        table[:noteable_type].eq('Commit').and(table[:noteable_id].not_eq(nil))
-      )
-    end
-
-    remove_concurrent_index_by_name(:notes, TEMP_INDEX_NAME)
-  end
-
-  def down
-  end
-end