This completes the fix from PR #2315 by ensuring that when a resource
pool is deleted, all associated resource records are also deleted from
the resources table, preventing orphaned resource records.
Changes:
- Modified delete_resource_pool() to first delete all resource records
in the pool before deleting the pool itself
- This complements the existing fix in remove_resource_from_pool() which
handles single resource removal
d2848a600e