config: Deprecate cloud_storage_disable_metadata_consistency_checks

The option was never turned on by default. Our plan was to eventually
enable it but it is now replaced with fencing mechanism which is always
on and can't be disabled.

Signed-off-by: Evgeny Lazin <[email protected]>

src/v/config/configuration.h

@@ -468,7 +468,7 @@ struct configuration final : public config_store {
     property<std::chrono::milliseconds>
       cloud_storage_topic_purge_grace_period_ms;
     property<bool> cloud_storage_disable_upload_consistency_checks;
-    property<bool> cloud_storage_disable_metadata_consistency_checks;
+    deprecated_property cloud_storage_disable_metadata_consistency_checks;
     property<std::chrono::milliseconds> cloud_storage_hydration_timeout_ms;
     property<bool> cloud_storage_disable_remote_labels_for_tests;