qt qrwindow: rm dead code
qt qrwindow: rm dead code

pooler/electrum-ltc,spesmilo/electrum,pooler/electrum-ltc,spesmilo/electrum,pooler/electrum-ltc,wakiyamap/electrum-mona,vialectrum/vialectrum,spesmilo/electrum,fujicoin/electrum-fjc,fujicoin/electrum-fjc,fujicoin/electrum-fjc,neocogent/electrum,vialectrum/vialectrum,vialectrum/vialectrum,neocogent/electrum,spesmilo/electrum,wakiyamap/electrum-mona,wakiyamap/electrum-mona,pooler/electrum-ltc,wakiyamap/electrum-mona,neocogent/electrum