qt: Revert 7fa91e831227e556bd8a7ae3da64bd59d4f30d5f partially
qt: Revert 7fa91e831227e556bd8a7ae3da64bd59d4f30d5f partially

The AskPassphraseDialog modal dialog must be synchronous here as
expected in the WalletModel::requestUnlock() function.

Fixed an introduced regression.

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