1 files changed, 2 insertions, 34 deletions
diff --git a/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb b/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb
index a1af045a71f..21b626dde56 100644
--- a/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb
+++ b/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb
@@ -1,44 +1,12 @@
 # frozen_string_literal: true
-# rubocop:disable Metrics/LineLength
 # rubocop:disable Style/Documentation
 
 module Gitlab
   module BackgroundMigration
     class DeleteConflictingRedirectRoutesRange
-      class Route < ActiveRecord::Base
-        self.table_name = 'routes'
-      end
-
-      class RedirectRoute < ActiveRecord::Base
-        self.table_name = 'redirect_routes'
-      end
-
-      # start_id - The start ID of the range of events to process
-      # end_id - The end ID of the range to process.
       def perform(start_id, end_id)
-        return unless migrate?
-
-        conflicts = RedirectRoute.where(routes_match_redirects_clause(start_id, end_id))
-        num_rows = conflicts.delete_all
-
-        Rails.logger.info("Gitlab::BackgroundMigration::DeleteConflictingRedirectRoutesRange [#{start_id}, #{end_id}] - Deleted #{num_rows} redirect routes that were conflicting with routes.")
-      end
-
-      def migrate?
-        Route.table_exists? && RedirectRoute.table_exists?
-      end
-
-      def routes_match_redirects_clause(start_id, end_id)
-        <<~ROUTES_MATCH_REDIRECTS
-          EXISTS (
-            SELECT 1 FROM routes
-            WHERE (
-              LOWER(redirect_routes.path) = LOWER(routes.path)
-              OR LOWER(redirect_routes.path) LIKE LOWER(CONCAT(routes.path, '/%'))
-            )
-            AND routes.id BETWEEN #{start_id} AND #{end_id}
-          )
-        ROUTES_MATCH_REDIRECTS
+        # No-op.
+        # See https://gitlab.com/gitlab-com/infrastructure/issues/3460#note_53223252
       end
     end
   end