[clang] [llvm] [ConstantFold] Drop gep of gep fold entirely (PR #95126)

[Jan Patrick Lehr via cfe-commits]

jplehr wrote:

I believe this broke our flang+openmp+offload bot: https://lab.llvm.org/staging/#/builders/140/builds/10168
Happy to help looking into it.

https://github.com/llvm/llvm-project/pull/95126