[clang] [clang][Darwin] Remove legacy framework search path logic in the frontend (PR #75841)

[Louis Dionne via cfe-commits]

ldionne wrote:

@aeubanks @petrhosek Can you folks share what was the top level invocations you did to get those errors? I am having trouble understanding the problem just from the pasted errors.

https://github.com/llvm/llvm-project/pull/75841