Revert "devinfo: Add support for libxo"
This broke the human output formatting in several ways.
This reverts commit 4cf5878d27ddc9d3ca3ed870f88112c3b4f6fb69.
This reverts commit e8d6b58ef5a4afe0d155b6967c92d55f3bbd53fe.
This reverts commit c759aca606cee8352c1d739bf7a762c8a2ed2012.
PR: 291511
Reviewed by: imp, des
Differential Revision: https://reviews.freebsd.org/D54196