[circularprogress] Remove deprecated classes

[silviuaavram]

• I have followed (at least) the PR section of the contributing guide.

[mui-bot]

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• docs/data/material/migration/upgrade-to-v9/upgrade-to-v9.md

Bundle size report

Bundle	Parsed size	Gzip size
@mui/material	▼-85B(-0.02%)	▼-22B(-0.02%)
@mui/lab	0B(0.00%)	0B(0.00%)
@mui/system	0B(0.00%)	0B(0.00%)
@mui/utils	0B(0.00%)	0B(0.00%)

Details of bundle changes

Generated by 🚫 dangerJS against 7dff4e3

[Copilot]

Pull request overview

Removes deprecated CircularProgress CSS utility classes (circleDeterminate, circleIndeterminate) across the Material UI source and documentation, and updates tests/migration guidance to rely on the non-deprecated class combinations.

Changes:

• Removed deprecated class keys from circularProgressClasses and stopped generating/applying them in CircularProgress.
• Updated unit tests to assert indeterminate on the root and circle on the <circle> element.
• Updated API docs JSON and added an Upgrade-to-v9 migration note for the removed classes.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/mui-material/src/CircularProgress/circularProgressClasses.ts	Removes deprecated class keys from the public classes interface and generated utility classes.
packages/mui-material/src/CircularProgress/CircularProgress.js	Stops composing/applying the deprecated variant-specific circle classes and removes them from the overrides resolver.
packages/mui-material/src/CircularProgress/CircularProgress.test.js	Updates assertions to match the new class strategy (indeterminate on root, circle on circle).
docs/translations/api-docs/circular-progress/circular-progress.json	Removes deprecated class entries from translated API docs content.
docs/pages/material-ui/api/circular-progress.json	Removes deprecated class entries from the API documentation data.
docs/data/material/migration/upgrade-to-v9/upgrade-to-v9.md	Adds a v9 upgrade note describing the removed classes and suggested replacements/codemod.

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[silviuaavram]

For now, in the codemod, the actual.js looks like this:

import { circularProgressClasses } from '@mui/material/CircularProgress';

('& .MuiCircularProgress-circleDeterminate');
('& .MuiCircularProgress-circleIndeterminate');
`& .${circularProgressClasses.circleDeterminate}`;
`& .${circularProgressClasses.circleIndeterminate}`;

Last 2 entries won't work anymore, because we are removing those classes. How are we changing the codemod in this case?

@ZeeshanTamboli @siriwatknp @mj12albert