Remove widget pointer from ReviveTabController

The pointer is not needed and is an anti pattern.

src/tabcontrollers/ReviveTabController.cpp

@@ -297,11 +297,9 @@ void ReviveTabController::initStage1( bool forceRevivePage )
     }
 }
 
-void ReviveTabController::initStage2( OverlayController* var_parent,
-                                      QQuickWindow* var_widget )
+void ReviveTabController::initStage2( OverlayController* var_parent )
 {
     this->parent = var_parent;
-    this->widget = var_widget;
 }
 
 void ReviveTabController::eventLoopTick()

src/tabcontrollers/ReviveTabController.h

@@ -70,7 +70,6 @@ class ReviveTabController : public QObject
 
 private:
     OverlayController* parent;
-    QQuickWindow* widget;
 
     bool m_isOverlayInstalled = false;
     int m_gripButtonMode = 0;
@@ -98,7 +97,7 @@ private:
 
 public:
     void initStage1( bool forceRevivePage );
-    void initStage2( OverlayController* parent, QQuickWindow* widget );
+    void initStage2( OverlayController* parent );
 
     void eventLoopTick();