Do I need to attribute icons I’m not using anymore but is visible in my repo history?

I'm developing a mobile app and I'm using GitHub for source code which is set to public.

I was using some free icons from www.flaticon.com/home , which required the developer to attribute the authors to the icons.

But I decided to go ahead and just create my own icons and delete all the icons I was using the flaticon, but the problem is in the previous commits on GitHub, the old images of the icons are still visible in my resource folders.

Is this a problem I need to address at all? Do I need to mention anywhere that I WAS using icons from FlatIcon or am I good to just act like it never happened? I was saving the app credits page for the end of my development, so none of the commits have an attribution for the icons they used yet either…

On the commit where I removed all of them, I did make a comment thanking them.. but is that enough?

Thanks!