[clang] [lld] [llvm] Run ObjCContractPass in Distributed Thin-LTO Pipeline (PR #92331)

[Kyungwoo Lee via llvm-commits]

kyulee-com wrote:

Because you now add it to `codegen` unconditionally, do you also need to delete https://github.com/llvm/llvm-project/blob/main/llvm/lib/LTO/LTOCodeGenerator.cpp#L141?

https://github.com/llvm/llvm-project/pull/92331