Revert "trymerge to ignore certain failures (pytorch#91134)"

This reverts commit 8b7bd5d.

Reverted pytorch#91134 on behalf of https://github.com/seemethere due to Breaks internal `github-export-checks` see failure: https://fburl.com/sandcastle/ggqj29pz

Author: pytorchmergebot

.github/merge_rules.yaml

@@ -395,5 +395,3 @@
   - EasyCLA
   - Lint
   - pull
-
-- flaky_rules_location_url: https://raw.githubusercontent.com/pytorch/test-infra/generated-stats/stats/flaky-rules.json