Remove Setup tmate session action

[kilemensi]

Description

The intention was good but it feels like none is using the session anyway.

Type of change

• Chore (non-breaking change which does not add visible functionality but improves code quality)

Screenshots

N/A

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation