wallet: combine redundant bumpfee invalid params and args tests
wallet: combine redundant bumpfee invalid params and args tests

might be best reviewed with:

git show COMMIT_HASH -w --color-moved=dimmed-zebra

namecoin/namecore,sstone/bitcoin,yenliangl/bitcoin,mm-s/bitcoin,domob1812/bitcoin,Xekyo/bitcoin,instagibbs/bitcoin,tecnovert/particl-core,apoelstra/bitcoin,JeremyRubin/bitcoin,alecalve/bitcoin,namecoin/namecore,mruddy/bitcoin,bitcoinsSG/bitcoin,instagibbs/bitcoin,ajtowns/bitcoin,GroestlCoin/GroestlCoin,fujicoin/fujicoin,EthanHeilman/bitcoin,jlopp/statoshi,litecoin-project/litecoin,jonasschnelli/bitcoin,Sjors/bitcoin,Xekyo/bitcoin,ElementsProject/elements,pataquets/namecoin-core,GroestlCoin/bitcoin,JeremyRubin/bitcoin,litecoin-project/litecoin,qtumproject/qtum,JeremyRubin/bitcoin,lateminer/bitcoin,rnicoll/dogecoin,MeshCollider/bitcoin,Sjors/bitcoin,namecoin/namecoin-core,achow101/bitcoin,particl/particl-core,MeshCollider/bitcoin,MarcoFalke/bitcoin,tecnovert/particl-core,kallewoof/bitcoin,lateminer/bitcoin,achow101/bitcoin,apoelstra/bitcoin,achow101/bitcoin,andreaskern/bitcoin,cdecker/bitcoin,EthanHeilman/bitcoin,tecnovert/particl-core,fujicoin/fujicoin,bitcoinsSG/bitcoin,AkioNak/bitcoin,pstratem/bitcoin,cdecker/bitcoin,kallewoof/bitcoin,bitcoinknots/bitcoin,andreaskern/bitcoin,ElementsProject/elements,MarcoFalke/bitcoin,achow101/bitcoin,apoelstra/bitcoin,namecoin/namecore,jamesob/bitcoin,practicalswift/bitcoin,bitcoinsSG/bitcoin,domob1812/namecore,qtumproject/qtum,jnewbery/bitcoin,andreaskern/bitcoin,sipsorcery/bitcoin,sstone/bitcoin,domob1812/namecore,GroestlCoin/GroestlCoin,pstratem/bitcoin,pataquets/namecoin-core,instagibbs/bitcoin,GroestlCoin/bitcoin,pataquets/namecoin-core,jamesob/bitcoin,alecalve/bitcoin,litecoin-project/litecoin,prusnak/bitcoin,MarcoFalke/bitcoin,mm-s/bitcoin,fanquake/bitcoin,bitcoinknots/bitcoin,rnicoll/bitcoin,GroestlCoin/GroestlCoin,jlopp/statoshi,particl/particl-core,jambolo/bitcoin,sstone/bitcoin,Xekyo/bitcoin,EthanHeilman/bitcoin,anditto/bitcoin,rnicoll/dogecoin,GroestlCoin/bitcoin,jambolo/bitcoin,AkioNak/bitcoin,sipsorcery/bitcoin,bitcoinknots/bitcoin,EthanHeilman/bitcoin,ajtowns/bitcoin,MarcoFalke/bitcoin,yenliangl/bitcoin,qtumproject/qtum,JeremyRubin/bitcoin,fujicoin/fujicoin,rnicoll/dogecoin,alecalve/bitcoin,achow101/bitcoin,pstratem/bitcoin,ajtowns/bitcoin,jonasschnelli/bitcoin,qtumproject/qtum,domob1812/namecore,domob1812/bitcoin,apoelstra/bitcoin,MeshCollider/bitcoin,jonasschnelli/bitcoin,Sjors/bitcoin,jonasschnelli/bitcoin,GroestlCoin/GroestlCoin,particl/particl-core,bitcoinsSG/bitcoin,AkioNak/bitcoin,rnicoll/bitcoin,MeshCollider/bitcoin,mruddy/bitcoin,EthanHeilman/bitcoin,practicalswift/bitcoin,dscotese/bitcoin,alecalve/bitcoin,mruddy/bitcoin,Xekyo/bitcoin,particl/particl-core,MarcoFalke/bitcoin,domob1812/bitcoin,instagibbs/bitcoin,GroestlCoin/bitcoin,rnicoll/dogecoin,sstone/bitcoin,litecoin-project/litecoin,jambolo/bitcoin,mruddy/bitcoin,pataquets/namecoin-core,n1bor/bitcoin,Sjors/bitcoin,rnicoll/bitcoin,practicalswift/bitcoin,apoelstra/bitcoin,AkioNak/bitcoin,fujicoin/fujicoin,fanquake/bitcoin,achow101/bitcoin,alecalve/bitcoin,namecoin/namecoin-core,prusnak/bitcoin,JeremyRubin/bitcoin,qtumproject/qtum,mm-s/bitcoin,ElementsProject/elements,rnicoll/bitcoin,rnicoll/dogecoin,andreaskern/bitcoin,litecoin-project/litecoin,pstratem/bitcoin,JeremyRubin/bitcoin,lateminer/bitcoin,fujicoin/fujicoin,practicalswift/bitcoin,pataquets/namecoin-core,sipsorcery/bitcoin,jonasschnelli/bitcoin,andreaskern/bitcoin,sipsorcery/bitcoin,yenliangl/bitcoin,prusnak/bitcoin,ajtowns/bitcoin,jamesob/bitcoin,domob1812/namecore,cdecker/bitcoin,mruddy/bitcoin,namecoin/namecoin-core,domob1812/bitcoin,jnewbery/bitcoin,kallewoof/bitcoin,GroestlCoin/GroestlCoin,bitcoin/bitcoin,instagibbs/bitcoin,namecoin/namecore,prusnak/bitcoin,particl/particl-core,jamesob/bitcoin,qtumproject/qtum,qtumproject/qtum,domob1812/namecore,practicalswift/bitcoin,cdecker/bitcoin,GroestlCoin/GroestlCoin,litecoin-project/litecoin,fujicoin/fujicoin,MeshCollider/bitcoin,ajtowns/bitcoin,domob1812/bitcoin,kallewoof/bitcoin,pstratem/bitcoin,jambolo/bitcoin,prusnak/bitcoin,n1bor/bitcoin,rnicoll/bitcoin,pstratem/bitcoin,practicalswift/bitcoin,ElementsProject/elements,jlopp/statoshi,mm-s/bitcoin,ajtowns/bitcoin,dscotese/bitcoin,mm-s/bitcoin,prusnak/bitcoin,sstone/bitcoin,particl/particl-core,lateminer/bitcoin,AkioNak/bitcoin,namecoin/namecoin-core,bitcoin/bitcoin,GroestlCoin/bitcoin,mm-s/bitcoin,bitcoinknots/bitcoin,anditto/bitcoin,jambolo/bitcoin,kallewoof/bitcoin,GroestlCoin/bitcoin,tecnovert/particl-core,fanquake/bitcoin,cdecker/bitcoin,ElementsProject/elements,namecoin/namecoin-core,bitcoin/bitcoin,dscotese/bitcoin,fanquake/bitcoin,jnewbery/bitcoin,anditto/bitcoin,EthanHeilman/bitcoin,namecoin/namecoin-core,jamesob/bitcoin,yenliangl/bitcoin,lateminer/bitcoin,anditto/bitcoin,instagibbs/bitcoin,n1bor/bitcoin,cdecker/bitcoin,bitcoinknots/bitcoin,jamesob/bitcoin,bitcoin/bitcoin,yenliangl/bitcoin,dscotese/bitcoin,bitcoin/bitcoin,andreaskern/bitcoin,domob1812/bitcoin,yenliangl/bitcoin,Sjors/bitcoin,sipsorcery/bitcoin,fanquake/bitcoin,tecnovert/particl-core,sstone/bitcoin,n1bor/bitcoin,n1bor/bitcoin,apoelstra/bitcoin,dscotese/bitcoin,namecoin/namecore,tecnovert/particl-core,AkioNak/bitcoin,jnewbery/bitcoin,Xekyo/bitcoin,domob1812/namecore,anditto/bitcoin,kallewoof/bitcoin,sipsorcery/bitcoin,bitcoinsSG/bitcoin,jlopp/statoshi,n1bor/bitcoin,Xekyo/bitcoin,rnicoll/bitcoin,lateminer/bitcoin,MarcoFalke/bitcoin,jlopp/statoshi,jlopp/statoshi,bitcoin/bitcoin,MeshCollider/bitcoin,ElementsProject/elements,alecalve/bitcoin,bitcoinsSG/bitcoin,fanquake/bitcoin,jambolo/bitcoin,mruddy/bitcoin,jnewbery/bitcoin,anditto/bitcoin,pataquets/namecoin-core,dscotese/bitcoin,namecoin/namecore