Massive removal of unused modules

src/citra_qt/configuration/configure_system.h

@@ -1,38 +0,0 @@
-// Copyright 2016 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <QWidget>
-
-namespace Ui {
-class ConfigureSystem;
-}
-
-class ConfigureSystem : public QWidget {
-    Q_OBJECT
-
-public:
-    explicit ConfigureSystem(QWidget* parent = nullptr);
-    ~ConfigureSystem();
-
-    void applyConfiguration();
-    void setConfiguration();
-
-public slots:
-    void updateBirthdayComboBox(int birthmonth_index);
-    void refreshConsoleID();
-
-private:
-    void ReadSystemSettings();
-
-    std::unique_ptr<Ui::ConfigureSystem> ui;
-    bool enabled;
-
-    std::u16string username;
-    int birthmonth, birthday;
-    int language_index;
-    int sound_index;
-};