delete not needed space

src/mainwindow.cpp

@@ -112,7 +112,6 @@ MainWindow::MainWindow(QWidget *parent, const QStringList& torrentCmdLine) : QMa
 #endif
     setWindowIcon(QIcon(QString::fromUtf8(":/Icons/skin/qbittorrent32.png")));
 
-
   actionOpen->setIcon(IconProvider::instance()->getIcon("list-add"));
   actionDownload_from_URL->setIcon(IconProvider::instance()->getIcon("insert-link"));
   actionSet_upload_limit->setIcon(QIcon(QString::fromUtf8(":/Icons/skin/seeding.png")));