[Bug target/49854] Clean up SPE/e500 option handling

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49854

--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
The SPE port is getting removed for GCC 9, right? So can this be closed then?