yuzu/configuration/configure_per_general: Remove unused header inclusions

src/yuzu/configuration/configure_per_general.cpp

@@ -8,7 +8,6 @@
 
 #include <QHeaderView>
 #include <QMenu>
-#include <QMessageBox>
 #include <QStandardItemModel>
 #include <QString>
 #include <QTimer>

src/yuzu/configuration/configure_per_general.h

@@ -7,16 +7,16 @@
 #include <memory>
 #include <vector>
 
-#include <QKeyEvent>
+#include <QDialog>
 #include <QList>
-#include <QWidget>
 
 #include "core/file_sys/vfs_types.h"
 
-class QTreeView;
 class QGraphicsScene;
 class QStandardItem;
 class QStandardItemModel;
+class QTreeView;
+class QVBoxLayout;
 
 namespace Ui {
 class ConfigurePerGameGeneral;