Remove new_dir_modal feature flag
What does this MR do and why?
Removes all references related to the new_dir_modal feature flag.
Screenshots or screen recordings
No visual changes are expected
How to set up and validate locally
- Create a new directory in a repository
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.
Related to #341675 (closed)