Delete .gitignore

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Removal of IDE-specific files from version control.

📊 Key Changes

• Deleted .idea/.gitignore, which included ignores for /shelf/ and /workspace.xml.

🎯 Purpose & Impact

• 🧹 Cleans the repository by removing unnecessary IDE-specific files, making the repo more general for all developers.
• 🚀 Reduces clutter for users who may use different development environments or IDEs, promoting a more universal development setup.

[github-actions]

👋 Hello @glenn-jocher, thank you for submitting a 🚀 PR! To allow your work to be integrated as seamlessly as possible, we advise you to:

• ✅ Verify your PR is up-to-date with upstream/master. If your PR is behind upstream/master an automatic GitHub actions rebase may be attempted by including the /rebase command in a comment body, or by running the following code, replacing 'feature' with the name of your local branch:

git remote add upstream https://github.com/ultralytics/yolov5.git
git fetch upstream
git checkout feature  # <----- replace 'feature' with local branch name
git merge upstream/master
git push -u origin -f

• ✅ Verify all Continuous Integration (CI) checks are passing.
• ✅ Reduce changes to the absolute minimum required for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." -Bruce Lee