Remove .autoshape() method

[glenn-jocher]

Wrap manually instead for more future flexibility.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Refactoring the AutoShape functionality in Ultralytics YOLOv5 for simpler and streamlined integration.

📊 Key Changes

• 🧩 Imported and directly utilized the AutoShape class in hubconf.py when auto-shaping the model.
• ✂️ Removed the redundant autoshape() method from both AutoShape and the Model class in yolo.py.
• 🔄 Added logging and attribute copying when initializing AutoShape in common.py.
• 🛠️ Code cleanliness and maintenance enhancements by consolidating attribute copying logic in the AutoShape class initialization.

🎯 Purpose & Impact

• 🚀 The purpose of these changes is to clean up the codebase by removing unnecessary methods, reducing redundancy, and improving the maintainability of the code.
• 🛍️ Users can expect more straightforward and less-error-prone functionality when auto-shaping models, resulting in an easier integration process.
• 👍 This change is mostly internal and focused on improving code quality, but it also provides clearer logging during model auto-shaping which might be helpful for users during debugging and model setup.

[glenn-jocher]

/rebase