btrfs: remove unused qgroup functions for pertrans reservation and freeing

They have no more users since commit a649684967 ("btrfs: fix start
transaction qgroup rsv double free"), so remove them.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2026-03-17 18:54:04 +00:00 • committed by David Sterba
commit e35577706e