[ez] Remove a trailing space from compilation/decorators.py

[zhxchen17]

My local IDE keeps complaining about this trailing space so I guess it doesn't hurt to remove it directly.

Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.

Purpose

Local code quality improvement by removing a trailing space.

Test Plan

CI

Test Result

should pass

(Optional) Documentation Update

[github-actions]

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[gemini-code-assist]

Code Review

This pull request removes a trailing whitespace from a comment in vllm/compilation/decorators.py. This is a minor code quality improvement that aligns with common style guidelines. The change is correct and I have no further feedback.