fix winclip openvino inference output without mask

[junxnone]

📝 Description

WinClip OpenVINO Inference output is only the classification score.

• 🛠️ Fixes #1641

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• [x] 🐞 Bug fix (non-breaking change which fixes an issue)
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• [ ] 🚀 New feature (non-breaking change which adds functionality)
• [ ] 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] 📚 Documentation update
• [ ] 🔒 Security update

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