[clang] [clang][modules][deps]Remove -F option from test for clang-scan-deps (PR #141614)

[Cyndy Ishida via cfe-commits]

https://github.com/cyndyishida approved this pull request.

LGTM, thanks! 

>not all platforms support -F, which is a g++ extension. 

It indeed looks unecessary for this test but what is the correct way enable support for `-F` in clang tests? I would actally expect it to show up often in our tests as it's a common option for darwin targets, but doesn't need to be strictly tied to a platform. 

https://github.com/llvm/llvm-project/pull/141614