[PRQ#67127] Deletion Request for fairseq

MarsSeed [1] filed a deletion request for fairseq [2]: Deprecated (last released in 2022 [a][b]); superseded by fairseq2, see readme of the latter. [c] Broken with current python-numpy 2.0+. [d] [a]: https://pypi.org/project/fairseq [b]: https://github.com/facebookresearch/fairseq/tags [c]: https://github.com/facebookresearch/fairseq2 [d]: https://github.com/facebookresearch/fairseq/issues/5505 [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/fairseq/