[clang] [analyzer][NFC] Minor cleanup in two test files. (PR #100570)

[Kristóf Umann via cfe-commits]

Szelethus wrote:

> If these changes are unrelated to each other, wouldn't it be better to separate them into 2 commits?

I see the principle, but I think its reasonable to push this one go, considering that these changes are really minor and inconsquential, especially since they affect the very same file. 

https://github.com/llvm/llvm-project/pull/100570