remove unused functions
remove unused functions

the functions `create_transaction()` and `create_raw_transaction()` were no longer used hence removed.

instagibbs/bitcoin,lateminer/bitcoin,bitcoinsSG/bitcoin,jamesob/bitcoin,sstone/bitcoin,jamesob/bitcoin,sstone/bitcoin,bitcoin/bitcoin,namecoin/namecoin-core,kallewoof/bitcoin,ajtowns/bitcoin,jamesob/bitcoin,sstone/bitcoin,lateminer/bitcoin,fanquake/bitcoin,tecnovert/particl-core,AkioNak/bitcoin,namecoin/namecore,bitcoin/bitcoin,kallewoof/bitcoin,particl/particl-core,ajtowns/bitcoin,jambolo/bitcoin,particl/particl-core,AkioNak/bitcoin,bitcoinsSG/bitcoin,AkioNak/bitcoin,AkioNak/bitcoin,namecoin/namecore,mruddy/bitcoin,jambolo/bitcoin,bitcoin/bitcoin,bitcoin/bitcoin,jambolo/bitcoin,mruddy/bitcoin,tecnovert/particl-core,domob1812/bitcoin,kallewoof/bitcoin,bitcoinsSG/bitcoin,Xekyo/bitcoin,mruddy/bitcoin,particl/particl-core,jamesob/bitcoin,fanquake/bitcoin,kallewoof/bitcoin,mruddy/bitcoin,fujicoin/fujicoin,sipsorcery/bitcoin,fanquake/bitcoin,namecoin/namecore,namecoin/namecore,namecoin/namecoin-core,fujicoin/fujicoin,particl/particl-core,Xekyo/bitcoin,AkioNak/bitcoin,particl/particl-core,bitcoin/bitcoin,bitcoin/bitcoin,bitcoinsSG/bitcoin,instagibbs/bitcoin,jamesob/bitcoin,instagibbs/bitcoin,domob1812/bitcoin,jambolo/bitcoin,ajtowns/bitcoin,Xekyo/bitcoin,domob1812/bitcoin,mruddy/bitcoin,namecoin/namecore,kallewoof/bitcoin,namecoin/namecoin-core,sipsorcery/bitcoin,Xekyo/bitcoin,fanquake/bitcoin,sstone/bitcoin,Xekyo/bitcoin,lateminer/bitcoin,fanquake/bitcoin,domob1812/bitcoin,fujicoin/fujicoin,namecoin/namecoin-core,sstone/bitcoin,namecoin/namecoin-core,AkioNak/bitcoin,instagibbs/bitcoin,lateminer/bitcoin,sipsorcery/bitcoin,domob1812/bitcoin,fanquake/bitcoin,tecnovert/particl-core,sipsorcery/bitcoin,jamesob/bitcoin,jambolo/bitcoin,sstone/bitcoin,sipsorcery/bitcoin,fujicoin/fujicoin,instagibbs/bitcoin,ajtowns/bitcoin,tecnovert/particl-core,jambolo/bitcoin,ajtowns/bitcoin,lateminer/bitcoin,namecoin/namecoin-core,kallewoof/bitcoin,particl/particl-core,ajtowns/bitcoin,domob1812/bitcoin,namecoin/namecore,tecnovert/particl-core,bitcoinsSG/bitcoin,tecnovert/particl-core,sipsorcery/bitcoin,lateminer/bitcoin,Xekyo/bitcoin,mruddy/bitcoin,fujicoin/fujicoin,fujicoin/fujicoin,instagibbs/bitcoin,bitcoinsSG/bitcoin