rpcwallet: Replace pwallet-> with wallet.
rpcwallet: Replace pwallet-> with wallet.

pwallet is never null everywhere where it is dereferenced, so simply
replace it with a reference, which can not be null by definition.

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