btrfs: assume valid token for btrfs_set/get_token helpers

Now that we can safely assume that the token is always a valid pointer,
remove the branches that check that.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-08-09 17:30:23 +02:00
commit 48bc39501a