[clang] [NFC] Skip a test on target={{.*}}-apple-darwin for TLS using (PR #218824)

[YongKang Zhu via cfe-commits]

yozhu wrote:

> > With this change, we will skip the whole test when targeting Darwin/macOS, even for the versions which support TLS.
> > Just wanted to make sure that this is intended (vs. only disabling the impacted cases).
> 
> I don't feel that bad. As this is not target dependent, this is only related to target as some targets not supporting TLS.

Sounds good to me. Thanks for the fix!

https://github.com/llvm/llvm-project/pull/218824