Draft: Remove user from organization_users on member deletion
What does this MR do and why?
Remove user from organization_users on member deletion
- when a user is no longer a member in a group or project in an organization, remove them from organization_users
- do not remove users from the default organization
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
Related to #419367 (closed)