How to theme the table view mode which is showing entities in inline entity form
Most simple solution should be to override the table.html.twig template. You can simplify it to your needs in your theme's template directory. Use the core/themes/classy/templates/dataset/table.html.twig file as source to start your theming.

If you don't want to "re-theme" all tables, add "suggestions" for other templates to your tables and create template files accordingly.