Personas: Authorization Check for S_PERSONAS although Personas neither installed nor used

I am getting checks for authorization object S_PERSONAS for all transaction codes called in addition to standard check although we do not use Personas on the system. I use authorization trace from transaction ST01.

It checks for Flavor-ID SAP_PERSONAS.

We use NetWeaver 7.40 ABAP SP04, no personas component installed.

Any ideas how we can switch off that check since it extends the list of checks so that it is more difficult to find the relevant entries and probably it will also cost unnecessary performance?