Fixes #2771 - Removes unnecessary favicons

[marimeireles]

Removed a few favicons that weren't necessary and were being downloaded when user was on Safari.

r? @miketaylr

[miketaylr]

I want to be sure we're doing this for a principled reason and not just because there's a lot of them. @marimeireles do we have measurements of the before/after to justify deleting them, I guess in Safari since that's the browser with the bug?

[miketaylr]

That said, I do agree that we're maintaining a lot of images just for the possibility that someone bookmarks the site on their phone or ipad or whatever, and wants a pretty icon.

[marimeireles]

I want to be sure we're doing this for a principled reason and not just because there's a lot of them

No, but I can do it. I'll post my results in the issue #2771, better than here, right?

[miketaylr]

@marimeireles can we do a little bit of research and find the minimal viable set of favicon images required to not look like crap on regular and hi-dpi monitors? I'm inclined to suggest we just burn it all down and revisit app icons once we add some app-like functionality (via service workers, or anything compelling that would inspire you to save the site to your home screen)

[marimeireles]

I'm inclined to suggest we just burn it all down and revisit app icons once we add some app-like functionality (via service workers, or anything compelling that would inspire you to save the site to your home screen)

I thought we already had the functionality.

[miketaylr]

I thought we already had the functionality.

No, we just have an app manifest. No service workers.

[miketaylr]

Thanks @marimeireles.

Any objections @magsout @karlcow?

[karlcow]

no issue for me.

[miketaylr]

Cool, let's go for it. We can always change back if we decide it's important in the future.