test: delete 11k low-signal tests so CI runs faster and flakes less (#22557)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
05696c636eTheo Browne committed on 10/21/2026, 12:17:40 AM· committed by GitHubparentc3540a7
64 files changedLine totals unavailable