GUI: Remove unused declaration

src/gui/Src/Gui/MainWindow.cpp

@@ -273,6 +273,11 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent), ui(new Ui::MainWi
     mCpuWidget->setDisasmFocus();
 }
 
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
 void MainWindow::closeEvent(QCloseEvent* event)
 {
     mCloseDialog->show();
@@ -295,11 +300,6 @@ void MainWindow::closeEvent(QCloseEvent* event)
         event->ignore();
 }
 
-MainWindow::~MainWindow()
-{
-    delete ui;
-}
-
 void MainWindow::setTab(QWidget* widget)
 {
     for(int i = 0; i < mTabWidget->count(); i++)

src/gui/Src/Gui/MainWindow.h

@@ -38,7 +38,7 @@ class MainWindow : public QMainWindow
 public:
     explicit MainWindow(QWidget* parent = 0);
     ~MainWindow();
-    static DWORD WINAPI closeThread(void* ptr);
+
     void closeEvent(QCloseEvent* event);
     void setTab(QWidget* widget);
     void loadTabDefaultOrder();