IPB/static/css/core_admin_settings_general.css

 input[name="datalayer_event_formatted_name"], input[name="datalayer_property_formatted_name"], input[name="core_datalayer_gtmkey"], input[name="datalayer_handler_datalayer_key"]{font-family:monospace;}form.no_submit button[type="submit"]{display:none;}