Request #621 has been rejected by seblu [1]: Binaries packages are not necesseraly duplicates. It's a pre built version, where extra offer an archlinux builded version. It was updated 3 months ago. I'm not sure it's really necessary to have a binary version for ovmf, but the removal request is too light imho.
[1] https://aur.archlinux.org/account/seblu/
