displayio adapter: calls pubmatic get user id function

[patmmccann]

@philan15 please don't call getuseridsaseids in the owpbjs library

https://github.com/prebid/Prebid.js/blob/b9fe9a2991e8383b6c121e19fe1d859fbd80365f/modules/displayioBidAdapter.js#L134

That's the wrong global and one should read the eids from the request, not this api.