Deleting fields from custom modules

A custom module was created by duplicating from existing module. There are several core fields that are not needed in custom module and there are no delete button to permanently delete it in Studio. Is it necessary to go into phpMyAdmin to delete these fields? Thanks.


I would suggest you need to keep those basic(default) fields as it is, because in listview and each view it will check for default field in default query. eg. “deleted” =0 etc…