Cleanup cuda install scripts for Windows jobs (#39712)
Summary:
1. Separate script
2. Don't print result in stdout
3. Don't collect logs if installation succeeds
Pull Request resolved: https://github.com/pytorch/pytorch/pull/39712
Differential Revision: D21959449
Pulled By: malfet
fbshipit-source-id: 3379de28db0606632587a598c6721ff54f1e85b7
