[rest] drop superfluous rpc serializations flags for block filters
[rest] drop superfluous rpc serializations flags for block filters

mruddy/bitcoin,GroestlCoin/bitcoin,tecnovert/particl-core,bitcoinknots/bitcoin,lateminer/bitcoin,sstone/bitcoin,namecoin/namecoin-core,instagibbs/bitcoin,particl/particl-core,bitcoinknots/bitcoin,anditto/bitcoin,namecoin/namecore,achow101/bitcoin,pataquets/namecoin-core,AkioNak/bitcoin,mm-s/bitcoin,domob1812/namecore,namecoin/namecore,jlopp/statoshi,sipsorcery/bitcoin,kallewoof/bitcoin,AkioNak/bitcoin,fanquake/bitcoin,domob1812/namecore,jlopp/statoshi,tecnovert/particl-core,particl/particl-core,dscotese/bitcoin,bitcoin/bitcoin,tecnovert/particl-core,fujicoin/fujicoin,anditto/bitcoin,mm-s/bitcoin,pataquets/namecoin-core,mruddy/bitcoin,GroestlCoin/bitcoin,kallewoof/bitcoin,AkioNak/bitcoin,bitcoinsSG/bitcoin,mm-s/bitcoin,namecoin/namecore,jambolo/bitcoin,sstone/bitcoin,fanquake/bitcoin,andreaskern/bitcoin,Xekyo/bitcoin,instagibbs/bitcoin,jlopp/statoshi,kallewoof/bitcoin,anditto/bitcoin,ajtowns/bitcoin,dscotese/bitcoin,AkioNak/bitcoin,GroestlCoin/bitcoin,jambolo/bitcoin,fanquake/bitcoin,namecoin/namecoin-core,pataquets/namecoin-core,domob1812/bitcoin,particl/particl-core,jamesob/bitcoin,jamesob/bitcoin,sipsorcery/bitcoin,bitcoin/bitcoin,namecoin/namecore,fanquake/bitcoin,ajtowns/bitcoin,achow101/bitcoin,jambolo/bitcoin,domob1812/bitcoin,kallewoof/bitcoin,sstone/bitcoin,namecoin/namecoin-core,Xekyo/bitcoin,GroestlCoin/GroestlCoin,Xekyo/bitcoin,jambolo/bitcoin,jamesob/bitcoin,fujicoin/fujicoin,Xekyo/bitcoin,lateminer/bitcoin,namecoin/namecoin-core,GroestlCoin/GroestlCoin,pataquets/namecoin-core,jambolo/bitcoin,bitcoin/bitcoin,andreaskern/bitcoin,fujicoin/fujicoin,dscotese/bitcoin,andreaskern/bitcoin,jamesob/bitcoin,namecoin/namecore,andreaskern/bitcoin,tecnovert/particl-core,anditto/bitcoin,AkioNak/bitcoin,GroestlCoin/GroestlCoin,bitcoin/bitcoin,domob1812/bitcoin,sipsorcery/bitcoin,domob1812/namecore,particl/particl-core,mruddy/bitcoin,dscotese/bitcoin,jlopp/statoshi,ajtowns/bitcoin,anditto/bitcoin,bitcoinknots/bitcoin,bitcoinsSG/bitcoin,Xekyo/bitcoin,jamesob/bitcoin,domob1812/namecore,GroestlCoin/bitcoin,dscotese/bitcoin,sipsorcery/bitcoin,namecoin/namecoin-core,fujicoin/fujicoin,achow101/bitcoin,anditto/bitcoin,GroestlCoin/bitcoin,bitcoin/bitcoin,namecoin/namecoin-core,ajtowns/bitcoin,mm-s/bitcoin,kallewoof/bitcoin,instagibbs/bitcoin,domob1812/namecore,fanquake/bitcoin,mm-s/bitcoin,particl/particl-core,particl/particl-core,Xekyo/bitcoin,jamesob/bitcoin,pataquets/namecoin-core,lateminer/bitcoin,fujicoin/fujicoin,sstone/bitcoin,domob1812/bitcoin,lateminer/bitcoin,fujicoin/fujicoin,andreaskern/bitcoin,achow101/bitcoin,sstone/bitcoin,pataquets/namecoin-core,mruddy/bitcoin,namecoin/namecore,GroestlCoin/GroestlCoin,andreaskern/bitcoin,lateminer/bitcoin,domob1812/bitcoin,fanquake/bitcoin,GroestlCoin/GroestlCoin,mm-s/bitcoin,GroestlCoin/GroestlCoin,jambolo/bitcoin,sstone/bitcoin,mruddy/bitcoin,bitcoinknots/bitcoin,instagibbs/bitcoin,GroestlCoin/bitcoin,domob1812/bitcoin,instagibbs/bitcoin,AkioNak/bitcoin,bitcoinsSG/bitcoin,sipsorcery/bitcoin,dscotese/bitcoin,ajtowns/bitcoin,bitcoin/bitcoin,domob1812/namecore,bitcoinsSG/bitcoin,mruddy/bitcoin,ajtowns/bitcoin,instagibbs/bitcoin,kallewoof/bitcoin,bitcoinsSG/bitcoin,bitcoinknots/bitcoin,jlopp/statoshi,jlopp/statoshi,achow101/bitcoin,bitcoinsSG/bitcoin,tecnovert/particl-core,lateminer/bitcoin,achow101/bitcoin,tecnovert/particl-core,sipsorcery/bitcoin