[symint] Change SizesAndStrides test back to using negative ints
Since we decided we want to support negative ints in SymInt, this
reverts commit b3e7230efa30e03b9ee8ff3e2b31c38754a6b2b1.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77914
Approved by: https://github.com/Krovatkin
