[flang] [clang] [Flang] remove whole-archive option for AIX linker (PR #76039)

[Michael Klemm via cfe-commits]

https://github.com/mjklemm approved this pull request.

LGTM, but please add to the TODO comment in line 1177 that for AIX a better solution needs to be found.

https://github.com/llvm/llvm-project/pull/76039