Qt: Replace create() with setGeometry

An explicit call to create() seems no longer necessary if setGeometry() is used. This replaces the setPosition() that was originally here.

Author: jasaaved

pcsx2-qt/MainWindow.cpp

@@ -2583,8 +2583,7 @@ void MainWindow::createDisplayWidget(bool fullscreen, bool render_to_main)
 #ifdef DISPLAY_SURFACE_WINDOW
 		if (isVisible() && g_emu_thread->shouldRenderToMain())
 		{
-			m_display_surface->create();
-			m_display_surface->setPosition(screen()->availableGeometry().topLeft());
+			m_display_surface->setGeometry(screen()->availableGeometry());
 		}
 		else
 			restoreDisplayWindowGeometryFromConfig();