lxdclient: get rid of spurious println
lxdclient: get rid of spurious println

I introduced this while debugging something, but didn't get rid of it.
Happy to squash this commit into the previous ones if necessary.

Signed-off-by: Tycho Andersen <10c18fcb898ee6b17d6575d444b125d10b3f4d6a@canonical.com>

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