btrfs: send: remove unused send_ctx::{total,cmd}_send_size

We collect these statistics but have never exposed them in any way. I
also didn't find any patches that ever attempted to make use of them.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Omar Sandoval 2022-03-17 10:25:37 -07:00 • committed by David Sterba
commit ca182acc53