Remove the header on top of the toolbar

I wanted to remove the header, which is on top of the toolbar. I tried following the instructions, which are on the following documentation page. However, it seems that the documentation is obsolete. My website looks so different from the documentation page. Please, advise.
https://stackideas.com/docs/easyblog/administrators/how-tos/how-to-turn-off-headers-above-toolbar