fix: revert temperature conversion fix

[TheRealWaldo]

This reverts commit 1c0948a.

[github-actions]

🎉 Faster HACS repository validator action summary 🎉

⚪ Ignored check: brands
⚪ Ignored check: wheels
✅ README.md exists
✅ All required keys are present in manifest.json
✅ hacs.json has the 'name' key set
✅ Requirements validation
✅ HACS load-ability check (does not try to load)
✅ The repository has a description
✅ The repository is not archived
✅ The repository has topics
✅ The repository has issues enabled

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