Remove inductor-perf-test-nightly label (#97290)
Remove labels according to Ed's suggestion
"I do NOT think performance dashboard should be label triggered. It easy to put a label on the PR, and then forget about it and keep spamming our limited A100 capacity when you push updates to your PR." Instead, one can use the "Run workflow" option and specify their feature branch in https://github.com/pytorch/pytorch/actions/workflows/inductor-perf-compare.yml
Pull Request resolved: https://github.com/pytorch/pytorch/pull/97290
Approved by: https://github.com/ezyang, https://github.com/desertfire
