[clang] [llvm] Revert "[HLSL] Set visibility of cbuffer global variables to internal" (PR #202538)

[Jan Patrick Lehr via cfe-commits]

jplehr wrote:

> Looks like #196404 needs to be reverted for the same reason.

Thanks for heads up, I see a compile error in our bots for that change too.

https://github.com/llvm/llvm-project/pull/202538