Remove anonfile cells

[avi-dey]

Remove anonfiles cells and all it's appearances from the notebook

Closes #58

Checklist before requesting a review

• [x] I have included the issue i am fixing by adding #58 .
• [x] Specified the category of the issue.
• [ ] Added a gift or screenshot (if applicable)
• [ ] Added additional information (optional).

[biplobsd]

@avi-dey Great. Your PR merged. Thanks for contributed to OneClickRun. Happy Hacktoberfest.