Remove an extra cache_inode_lru_ref from state_owner_unlock_all

An extra reference was introduced by commit
fa00240948f85add87a8baf2c617394c22cddf04 though that reference is
actually in the right place, so remove the one that existed before that
is in the wrong place...

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>