btrfs: qgroup: Cleanup old subtree swap code

Since it's replaced by new delayed subtree swap code, remove the
original code.

The cleanup is small since most of its core function is still used by
delayed subtree swap trace.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2019-01-23 15:15:18 +08:00 • committed by David Sterba
commit 9627736b75
2 changed files with 0 additions and 100 deletions