Deleted old versions of GetLLM in archive folder

I am running some metric tools on Beta-Beat.src and these files, or archived
backup files at all, falsify the results. So i deleted the archive folder.

Here is the list of the five most violated files(worst at the top):
GetLLM_V2.37.py
GetLLM_V2.38.py
GetLLM_valid.py
GetLLM_V2.38b.py
GetLLM_dev.py

@rogeliotomas @Eothred @alangner @tpersson
FYI