Revert "Update the pull request template (#81991)" (#83025)
This reverts commit 89a6680036ee4371caad48e753d3d5e2ec4604ea as it seems
to be filled in very sporadically
See discussion in https://github.com/pytorch/pytorch/issues/83024
Pull Request resolved: https://github.com/pytorch/pytorch/pull/83025
Approved by: https://github.com/seemethere, https://github.com/janeyx99
