[code-infra] Remove modern bundles

[Janpot]

Closes #45780
Fixes mui/mui-public#302

To Do:

• upgrade migration guide

[mui-bot]

Netlify deploy preview

• docs/data/material/guides/minimizing-bundle-size/minimizing-bundle-size.md
• docs/data/material/migration/upgrade-to-v7/upgrade-to-v7.md

Bundle size report

No bundle size changes (Toolpad)
No bundle size changes

Generated by 🚫 dangerJS against 3e8ac55

[mapache-salvaje]

minor copy edits otherwise LGTM!

[JCQuintas]

Isn't this breaking? Seems odd that we are adding it now 🤔

[Janpot]

Isn't this breaking?

Our current recommendations aren't working. And even if they were working it would be non-breaking as well, as it would just fall back gracefully to the esm bundle. It seems more appropriate to just remove it as the modern bundles don't really contain a significant improvement to bundle size. But yes, ideally, we should've just done this as part of v7.

[LukasTy]

Isn't this breaking? Seems odd that we are adding it now 🤔

I'd say that this is slightly breaking, since people will need to adjust their setup in case they were explicitly using the aliased modern bundle. 🤔
If we could squeeze this in before the X stable release, it would be awesome. 🤞 🙈

[Janpot]

I'd say that this is slightly breaking, since people will need to adjust their setup in case they were explicitly using the aliased modern bundle.

Yes, but they already have to do that as part of v7. (and X v8 too btw)

[siriwatknp]

👍