btrfs: inline wait_current_trans_commit_start in its caller

Function wait_current_trans_commit_start is now fairly trivial so it can
be inlined in its only caller.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2021-06-03 17:20:24 +02:00
commit ae5d29d4e7