New to Journey. A couple of questions about setting up.

Hello.

I'm new to Journey, having just been notified by the Mediavine Grow plugin that I'm elligible.

I currently use Google Adsense adverts on my Wordpress (Divi theme) website, of which about 70% are manually placed using the adsense code, and the rest being auto-placed by Adsense.

I proceeded to get Journey to auto install itself according to the instructions it gave. However, an error popped up “We found conflicting ad code running on your site from Google Adsense ad network. Launching ads with Journey requires you to remove code from any previous programmatic ad partners”

Obviously I can stop Adsense from auto placing ads, but the ads I've manually placed the JS (using the Divi Builder editor) is going to more work, as there are a lot of pages on my website with them on. Fortunately I've been using the library feature within Divi, so I can effectively change many pages in one go with a few simple changes.  

Can anyone help with the steps to remove Adsense from my website completely, including the editing of any unix file such as ads.txt. Or, instead provide a link to another page which explains it all. 

Many thanks