Revert "Ignore runner_machine_id column in Ci::BuildMetadata"

This reverts commit 4c8ed645.

app/models/ci/build_metadata.rb

@@ -10,15 +10,12 @@ class BuildMetadata < Ci::ApplicationRecord
     include Presentable
     include ChronicDurationAttribute
     include Gitlab::Utils::StrongMemoize
-    include IgnorableColumns
 
     self.table_name = 'p_ci_builds_metadata'
     self.primary_key = 'id'
 
     partitionable scope: :build
 
-    ignore_column :runner_machine_id, remove_with: '16.0', remove_after: '2023-04-22'
-
     belongs_to :build, class_name: 'CommitStatus'
     belongs_to :project
     belongs_to :runner_machine, class_name: 'Ci::RunnerMachine'