removed old deprecated header.
removed old deprecated header.

Airbitz/libbitcoin,libtetcoin/libtetcoin-consensus,GroestlCoin/libgroestlcoin,Airbitz/libbitcoin,GroestlCoin/libgroestlcoin,libtetcoin/libtetcoin-consensus,Airbitz/libbitcoin,GroestlCoin/libgroestlcoin,libmetrocoin/libmetrocoin-consensus,libmetrocoin/libmetrocoin-consensus,kaostao/libbitcoin,libmetrocoin/libmetrocoin-consensus,libmetrocoin/libmetrocoin-consensus,libtetcoin/libtetcoin-consensus,BWallet/libbitcoin,BWallet/libbitcoin,GroestlCoin/libgroestlcoin,Airbitz/libbitcoin,kaostao/libbitcoin,libtetcoin/libtetcoin-consensus,libmetrocoin/libmetrocoin-consensus,swansontec/libbitcoin,kaostao/libbitcoin,kaostao/libbitcoin,BWallet/libbitcoin,swansontec/libbitcoin,libtetcoin/libtetcoin-consensus,swansontec/libbitcoin,swansontec/libbitcoin,BWallet/libbitcoin