emoji-safe default logging

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

This PR removes emoji usage from log output in the Ultralytics YOLOv5 repository.

📊 Key Changes

• Removed the emojis function call from log outputs across various files (autoanchor.py, autobatch.py, general.py, loggers/__init__.py, torch_utils.py, val.py).
• Altered logging behavior to no longer process emojis in general.py.

🎯 Purpose & Impact

• The main goal seems to be simplifying log messages by removing emojis, which may enhance readability and avoid potential issues with logging systems that do not support emoji characters.
• The impact will be logs that are more compatible with various environments and possibly clearer to understand for users who prefer text-only messages.