[llvm] Revert "[Flang][OpenMP] Derived type member map fortran offload runtime tests" (PR #91784)

[via llvm-commits]

agozillon wrote:

I made a bit of a mistake landing the PR stack via Github rather than utilising SPR to automate it for me... so it only landed the tests, which I now need to revert.

Unfortunately i cannot open the PRs again, so I will instead land the PRs through direct commit and comment in the closed PRs the respective commits. 

https://github.com/llvm/llvm-project/pull/91784