Revert "trinity: add optional dependency on btrfs-progs"
This reverts commit a81782a3f5dc08bb8d740acb1e6d361022f62f96.
The trinity package does not use btrfs-progs, only btrfs kernel headers.
Cc: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>