Remove not needed parameter mainWindow from windows heap widget

src/widgets/HeapDockWidget.cpp

@@ -45,7 +45,7 @@ void HeapDockWidget::onAllocatorSelected(int index)
     if (index == Glibc) {
         currentHeapWidget = new GlibcHeapWidget(main, this);
     } else if (index == Windows) {
-        currentHeapWidget = new WindowsHeapWidget(main, this);
+        currentHeapWidget = new WindowsHeapWidget(this);
     }
 
     ui->verticalLayout->addWidget(currentHeapWidget);

src/widgets/WindowsHeapWidget.cpp

@@ -2,7 +2,7 @@
 #include "WindowsHeapWidget.h"
 #include "ui_WindowsHeapWidget.h"
 
-WindowsHeapWidget::WindowsHeapWidget(MainWindow *main, QWidget *parent)
+WindowsHeapWidget::WindowsHeapWidget(QWidget *parent)
     : QWidget(parent), ui(new Ui::WindowsHeapWidget)
 {
     ui->setupUi(this);

src/widgets/WindowsHeapWidget.h

@@ -39,7 +39,7 @@ class WindowsHeapWidget : public QWidget
     Q_OBJECT
 
 public:
-    explicit WindowsHeapWidget(MainWindow *main, QWidget *parent);
+    explicit WindowsHeapWidget(QWidget *parent);
     ~WindowsHeapWidget();
 private slots:
     void updateContents();