Remove column drop

migrations/20260516170852_drop_columns.sql

@@ -10,8 +10,4 @@ DROP TABLE IF EXISTS macro;
 DROP TABLE IF EXISTS roles;
 DROP TABLE IF EXISTS command_restrictions;
 
--- Drop columns from channels that are no longer used
-ALTER TABLE channels DROP COLUMN `name`;
-ALTER TABLE channels DROP COLUMN `blacklisted`;
-
 SET foreign_key_checks = 1;