Removed unused variable

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/ui/pages/instance/ExternalResourcesPage.h

@@ -72,7 +72,5 @@ class ExternalResourcesPage : public QMainWindow, public BasePage {
     QString m_fileSelectionFilter;
     QString m_viewFilter;
 
-    bool m_controlsEnabled = true;
-
     std::shared_ptr<Setting> m_wide_bar_setting = nullptr;
 };