How do I remove wordpress header up

If you indeed wish to remove the header image, you can simply hide the header image.

Access the Appearance -> Customize -> Header -> Hide image.

Sorry did not understand the your context. The term “header” has specific meaning in wordpress.

As for the “Login” at top of page, generally it does not show on a site. I tested a blank site with your “faq” theme, and it did not show the login bar on top. I suspect there is a plugin installed that requires users to login.

Here is another post regarding this topic.

Hope this helps.