revert compiler_rt: no need to put it in a static library
This mostly reverts 6e0904504155d3cba80955c108116170fd739aec however it
leaves intact the linker supporting both obj and lib files, and the
frontend choosing which one to create.
da7e4fb31aAndrew Kelley committed on 10/10/2023, 6:23:39 PMparent33ef01d