configuration: Use paired settings

src/yuzu/configuration/configure_system.cpp

@@ -107,18 +107,8 @@ void ConfigureSystem::Setup(const ConfigurationShared::Builder& builder) {
 
     for (auto setting : settings) {
         ConfigurationShared::Widget* widget = [this, setting, &builder]() {
-            if (setting->Id() == Settings::values.custom_rtc.Id()) {
-                // custom_rtc needs a DateTimeEdit (default is LineEdit), and a checkbox to manage
-                // it and custom_rtc_enabled
-                return builder.BuildWidget(setting, apply_funcs,
-                                           &Settings::values.custom_rtc_enabled);
-            } else if (setting->Id() == Settings::values.rng_seed.Id()) {
-                // rng_seed needs a HexEdit (default is LineEdit), and a checkbox to manage
-                // it and rng_seed_enabled
-                return builder.BuildWidget(setting, apply_funcs,
-                                           &Settings::values.rng_seed_enabled);
-            } else if (setting->Id() == Settings::values.speed_limit.Id()) {
-                // speed_limit needs a checkbox to set use_speed_limit, as well as a spinbox
+            if (setting->Id() == Settings::values.speed_limit.Id()) {
+                // speed_limit must be specified to translate the percentage
                 return builder.BuildWidget(setting, apply_funcs, &Settings::values.use_speed_limit,
                                            ConfigurationShared::RequestType::SpinBox,
                                            tr("%", "Limit speed percentage (e.g. 50%)"));

src/yuzu/configuration/shared_widget.cpp

@@ -345,6 +345,10 @@ void Widget::SetupComponent(const QString& label, std::function<void()>& load_fu
     QLayout* layout = new QHBoxLayout(this);
     layout->setContentsMargins(0, 0, 0, 0);
 
+    if (other_setting == nullptr) {
+        other_setting = setting.PairedSetting();
+    }
+
     const bool require_checkbox =
         other_setting != nullptr && other_setting->TypeId() == typeid(bool);