qt_mainwindow.{cpp,ui}: Minor cleanup

src/qt/qt_mainwindow.cpp

@@ -304,8 +304,6 @@ MainWindow::MainWindow(QWidget *parent)
             }
         }
 #endif
-        ui->actionPause->setChecked(false);
-        ui->actionPause->setCheckable(false);
     });
     connect(this, &MainWindow::getTitleForNonQtThread, this, &MainWindow::getTitle_, Qt::BlockingQueuedConnection);