How avoid gateway for power bi embbed

[osso]

We were use to publish our power bi on the embeed plan and then change the credentials when needed.

Now we cannot do that anymore and have to use "gateway ". But we don't want to integrate this stuff. 

How can we just go back to the old method ? Everytime we upload the report from pbi desktop or the online version, it directly go as "gateway".

Our Pbi are all direct queries.