crypto: Make MuHash Remove method efficient
crypto: Make MuHash Remove method efficient

Division of MuHash objects are very expensive and multiplication relatively cheap. The whole idea of introducing and tracking numerator and denominators seperately as a representation of the internal state was so that divisions would be rare. So using divison in the Remove method did not make any sense and was just a silly mistake which is corrected here.

prusnak/bitcoin,domob1812/bitcoin,jamesob/bitcoin,jlopp/statoshi,bitcoin/bitcoin,anditto/bitcoin,MarcoFalke/bitcoin,pataquets/namecoin-core,prusnak/bitcoin,dscotese/bitcoin,ElementsProject/elements,sipsorcery/bitcoin,domob1812/namecore,GroestlCoin/bitcoin,rnicoll/bitcoin,GroestlCoin/GroestlCoin,namecoin/namecore,bitcoinsSG/bitcoin,qtumproject/qtum,mruddy/bitcoin,achow101/bitcoin,domob1812/namecore,bitcoin/bitcoin,ElementsProject/elements,rnicoll/bitcoin,prusnak/bitcoin,jlopp/statoshi,GroestlCoin/bitcoin,sipsorcery/bitcoin,tecnovert/particl-core,lateminer/bitcoin,Xekyo/bitcoin,tecnovert/particl-core,sstone/bitcoin,GroestlCoin/GroestlCoin,AkioNak/bitcoin,AkioNak/bitcoin,fanquake/bitcoin,fanquake/bitcoin,rnicoll/bitcoin,dscotese/bitcoin,qtumproject/qtum,qtumproject/qtum,instagibbs/bitcoin,prusnak/bitcoin,pataquets/namecoin-core,anditto/bitcoin,sipsorcery/bitcoin,fujicoin/fujicoin,ajtowns/bitcoin,apoelstra/bitcoin,namecoin/namecoin-core,kallewoof/bitcoin,Xekyo/bitcoin,pataquets/namecoin-core,qtumproject/qtum,fanquake/bitcoin,bitcoinsSG/bitcoin,ajtowns/bitcoin,AkioNak/bitcoin,bitcoin/bitcoin,particl/particl-core,andreaskern/bitcoin,kallewoof/bitcoin,fujicoin/fujicoin,namecoin/namecore,mm-s/bitcoin,achow101/bitcoin,bitcoinknots/bitcoin,lateminer/bitcoin,bitcoinknots/bitcoin,apoelstra/bitcoin,sipsorcery/bitcoin,GroestlCoin/bitcoin,prusnak/bitcoin,domob1812/bitcoin,mm-s/bitcoin,fanquake/bitcoin,ElementsProject/elements,jamesob/bitcoin,jambolo/bitcoin,namecoin/namecoin-core,lateminer/bitcoin,ajtowns/bitcoin,lateminer/bitcoin,mruddy/bitcoin,bitcoinsSG/bitcoin,tecnovert/particl-core,AkioNak/bitcoin,particl/particl-core,rnicoll/bitcoin,andreaskern/bitcoin,anditto/bitcoin,jamesob/bitcoin,fujicoin/fujicoin,yenliangl/bitcoin,Xekyo/bitcoin,jlopp/statoshi,lateminer/bitcoin,qtumproject/qtum,domob1812/namecore,domob1812/namecore,sstone/bitcoin,mm-s/bitcoin,dscotese/bitcoin,jambolo/bitcoin,GroestlCoin/GroestlCoin,domob1812/namecore,bitcoinknots/bitcoin,fujicoin/fujicoin,namecoin/namecore,sstone/bitcoin,GroestlCoin/bitcoin,JeremyRubin/bitcoin,bitcoinknots/bitcoin,domob1812/bitcoin,ElementsProject/elements,yenliangl/bitcoin,JeremyRubin/bitcoin,pataquets/namecoin-core,ajtowns/bitcoin,jambolo/bitcoin,mruddy/bitcoin,AkioNak/bitcoin,particl/particl-core,apoelstra/bitcoin,sstone/bitcoin,bitcoin/bitcoin,andreaskern/bitcoin,yenliangl/bitcoin,anditto/bitcoin,namecoin/namecoin-core,namecoin/namecore,kallewoof/bitcoin,bitcoinsSG/bitcoin,instagibbs/bitcoin,instagibbs/bitcoin,prusnak/bitcoin,achow101/bitcoin,domob1812/namecore,bitcoin/bitcoin,kallewoof/bitcoin,jambolo/bitcoin,fujicoin/fujicoin,ElementsProject/elements,yenliangl/bitcoin,namecoin/namecoin-core,Xekyo/bitcoin,dscotese/bitcoin,sstone/bitcoin,andreaskern/bitcoin,GroestlCoin/GroestlCoin,ElementsProject/elements,mruddy/bitcoin,namecoin/namecore,bitcoinknots/bitcoin,jlopp/statoshi,MarcoFalke/bitcoin,particl/particl-core,particl/particl-core,JeremyRubin/bitcoin,andreaskern/bitcoin,lateminer/bitcoin,particl/particl-core,MarcoFalke/bitcoin,achow101/bitcoin,namecoin/namecoin-core,rnicoll/bitcoin,JeremyRubin/bitcoin,sipsorcery/bitcoin,sipsorcery/bitcoin,kallewoof/bitcoin,instagibbs/bitcoin,jamesob/bitcoin,fanquake/bitcoin,bitcoin/bitcoin,qtumproject/qtum,fujicoin/fujicoin,JeremyRubin/bitcoin,sstone/bitcoin,pataquets/namecoin-core,achow101/bitcoin,jambolo/bitcoin,tecnovert/particl-core,instagibbs/bitcoin,JeremyRubin/bitcoin,dscotese/bitcoin,GroestlCoin/bitcoin,MarcoFalke/bitcoin,apoelstra/bitcoin,kallewoof/bitcoin,Xekyo/bitcoin,mruddy/bitcoin,AkioNak/bitcoin,jamesob/bitcoin,anditto/bitcoin,GroestlCoin/bitcoin,jlopp/statoshi,bitcoinsSG/bitcoin,domob1812/bitcoin,rnicoll/bitcoin,bitcoinsSG/bitcoin,mm-s/bitcoin,andreaskern/bitcoin,ajtowns/bitcoin,mruddy/bitcoin,apoelstra/bitcoin,apoelstra/bitcoin,achow101/bitcoin,MarcoFalke/bitcoin,fanquake/bitcoin,GroestlCoin/GroestlCoin,Xekyo/bitcoin,jlopp/statoshi,dscotese/bitcoin,domob1812/bitcoin,tecnovert/particl-core,pataquets/namecoin-core,jamesob/bitcoin,ajtowns/bitcoin,tecnovert/particl-core,namecoin/namecore,GroestlCoin/GroestlCoin,mm-s/bitcoin,yenliangl/bitcoin,domob1812/bitcoin,namecoin/namecoin-core,mm-s/bitcoin,instagibbs/bitcoin,MarcoFalke/bitcoin,yenliangl/bitcoin,qtumproject/qtum,anditto/bitcoin,jambolo/bitcoin