added autoflakes pre-commit hook

[FrankLeeeee]

Motivation

We need a pre-commit hook to clean the unused imports automatically.

Modifications

I have added the autoflakes hook to the pre-commit config file and run it on the repo.

Related Issues

Accuracy Test

Benchmark & Profiling

Checklist

• Format your code according to the Code Formatting with Pre-Commit.
• Add unit tests as outlined in the Running Unit Tests.
• Update documentation / docstrings / example tutorials as needed, according to Writing Documentation.
• Provide throughput / latency benchmark results and accuracy evaluation results as needed, according to Benchmark and Profiling and Accuracy Results.
• For reviewers: If you haven't made any contributions to this PR and are only assisting with merging the main branch, please remove yourself as a co-author when merging the PR.
• Please feel free to join our Slack channel at https://sgl-fru7574.slack.com/archives/C09784E3EN6 to discuss your PR.

[gemini-code-assist]

Summary of Changes

Hello @FrankLeeeee, 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 integrates the "autoflake" tool into the pre-commit configuration, which will automatically identify and remove unused import statements in Python files. Concurrently, it cleans up existing unused imports across several Python files, enhancing the overall code quality, reducing bundle size, and making the codebase easier to maintain.

Highlights

• New Pre-Commit Hook: Introduced "autoflake" as a new pre-commit hook to automatically remove unused imports, ensuring cleaner and more efficient Python code.
• Codebase Cleanup: Removed numerous unused import statements from "model_runner.py" and "patch.py" within the "specforge/modeling/target/sglang_backend" module, improving code readability and reducing potential clutter.

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[gemini-code-assist]

Code Review

This pull request introduces the autoflake pre-commit hook to automatically remove unused imports, which is a great step towards maintaining a clean codebase. The changes in the Python files reflect the application of this new hook. I've added one suggestion to enhance the autoflake configuration to also remove unused variables and expand star imports, which would further improve code quality.

[nbroad1881]

I think this deletes too much. How do you do something like

from specforge import AutoDraftModelConfig, AutoEagle3DraftModel, OfflineEagle3Model

if __init__.py is empty?

@FrankLeeeee

[FrankLeeeee]

@nbroad1881 I found this as well, I am fixing this and ensuring future changes will not break scripts in #331