Remove a useless session.log warning

What does this MR do and why?

Removes a useless warning related to session.log not existing

Screenshots or screen recordings

How to set up and validate locally

1. Use my branch
2. Run rm logs -rf && python main.py -v on Linux and make sure the message Deleting Session.lock failed with error: [Errno 2] No such file or directory: './logs/session.log' does not show up

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Have you checked this doesn't interfere/conflict/duplicate someone elses work?
• Have you fully tested your changes?
• Have you resolved any lint issues?
• Have you assigned a reviewer?
• Have you applied correct labels?