Fix test compile warnings.
Fix test compile warnings.

libmetrocoin/libmetrocoin-consensus,libtetcoin/libtetcoin-consensus,libtetcoin/libtetcoin-consensus,libtetcoin/libtetcoin-consensus,libtetcoin/libtetcoin-consensus,libtetcoin/libtetcoin-consensus,libmetrocoin/libmetrocoin-consensus,libmetrocoin/libmetrocoin-consensus,libmetrocoin/libmetrocoin-consensus,libmetrocoin/libmetrocoin-consensus