Google Analytics + How to remove code from pages?

Working on this website, trying to add Google Analytics, I have an old tracking script I am trying to remove. Please see screenshot. I can't find where this code is? It doesn't seem to be in wp-content/themes/Avada/header.php

Could somebody please tell me where it is so I can manually remove it, thank you.

Doh! No attachment button for my screen?
Will submit this question, then try to attach a screenshot somehow.