[CI] Cleanup additional_dependencies: [toml] for pre-commit yapf hook (vllm-project#16405)

Signed-off-by: Kay Yan <[email protected]>

Author: yankay

.pre-commit-config.yaml

@@ -11,7 +11,6 @@ repos:
   hooks:
   - id: yapf
     args: [--in-place, --verbose]
-    additional_dependencies: [toml] # TODO: Remove when yapf is upgraded
 - repo: https://github.com/astral-sh/ruff-pre-commit
   rev: v0.9.3
   hooks: