message: qt: Remove QSignalMapper from RPCConsole
  The QSignalMapper class is obsolete since Qt 5.10.
diff: #include <QMessageBox>
  #include <QScrollBar>
  #include <QSettings>
  -#include <QSignalMapper>
  #include <QTime>
  #include <QTimer>
  #include <QStringList>
  @@ -603,19 +602,10 @@ void RPCConsole::setClientModel(ClientModel *model)
  peersTableContextMenu->addAction(banAction7d);
  peersTableContextMenu->addAction(banAction365d);
  - // Add a signal mapping to allow dynamic context menu arguments.
  - // We need to use int (instead of int64_t), because signal mapper only supports
  - // int or objects, which is okay because max bantime (1 year) is < int_max.
  - QSignalMapper* signalMapper = new QSignalMapper(this);
  - signalMapper->setMapping(banAction1h, 60*60);
  - signalMapper->setMapping(banAction24h, 60*60*24);
  - signalMapper->setMapping(banAction7d, 60*60*24*7);
  - signalMapper->setMapping(banAction365d, 60*60*24*365);
  - connect(banAction1h, &QAction::triggered, signalMapper, static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
  - connect(banAction24h, &QAction::triggered, signalMapper, static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
  - connect(banAction7d, &QAction::triggered, signalMapper, static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
  - connect(banAction365d, &QAction::triggered, signalMapper, static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
  - connect(signalMapper, static_cast<void (QSignalMapper::*)(int)>(&QSignalMapper::mapped), this, &RPCConsole::banSelectedNode);
  + connect(banAction1h, &QAction::triggered, [this] { banSelectedNode(60 * 60); });
  + connect(banAction24h, &QAction::triggered, [this] { banSelectedNode(60 * 60 * 24); });
  + connect(banAction7d, &QAction::triggered, [this] { banSelectedNode(60 * 60 * 24 * 7); });
  + connect(banAction365d, &QAction::triggered, [this] { banSelectedNode(60 * 60 * 24 * 365); });
  // peer table context menu signals
  connect(ui->peerWidget, &QTableView::customContextMenuRequested, this, &RPCConsole::showPeersTableContextMenu);
  