Fix lint errors

[dougalm]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @dougalm, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on improving code cleanliness and adherence to linting standards by removing several unused import statements across two files. This cleanup helps reduce unnecessary dependencies and makes the code easier to read and maintain.

Highlights

• Unused Imports Removal: Removed Callable and PyTreeDef from jax/_src/lax/control_flow/common.py as they were no longer utilized.
• Unused inspect Module: The inspect module import was removed from jax/_src/lax/control_flow/conditionals.py as it was not being used.

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[gemini-code-assist]

Code Review

This pull request removes several unused imports across jax/_src/lax/control_flow/common.py and jax/_src/lax/control_flow/conditionals.py. These changes are correct and help improve code quality by removing unused code. The changes look good.