The run-metrics.yaml workflow is a reusable workflow_call with no
caller in the repository, making it effectively dead code. Remove
the workflow, the entire tests/metrics/ directory (~586 files
including vendored Go for checkmetrics), and the "metrics"
self-hosted runner label from actionlint.yaml.
Made-with: Cursor
Signed-off-by: Fabiano Fidêncio <ffidencio@nvidia.com>
