Fixed orphaned media flush running on every startup.

src/media.js

@@ -1056,6 +1056,11 @@ async function deleteS3Objects(allMedia) {
 }
 
 async function flushOrphanedMedia(stage = 1) {
+	if (!config.media.flushOrphaned) {
+		logger.verbose('Orphaned media flush skipped, disabled in config');
+		return;
+	}
+
 	logger.info(`Flushing orphaned media, stage ${stage}`);
 
 	const orphanedMedia = await knex('media')