Remove unnecessary QObject inheritance

include/config.h

@@ -15,7 +15,7 @@ enum MapSortOrder {
     Layout  =  2,
 };
 
-class KeyValueConfigBase : public QObject
+class KeyValueConfigBase
 {
 public:
     void save();

include/core/regionmap.h

@@ -79,15 +79,11 @@ public:
     QString city_map_name;
 };
 
-class RegionMap : public QObject
+class RegionMap
 {
-    Q_OBJECT
-
 public:
     RegionMap() = default;
 
-    ~RegionMap() {};
-
     Project *project = nullptr;
 
     QVector<RegionMapSquare> map_squares;

include/ui/currentselectedmetatilespixmapitem.h

@@ -5,8 +5,7 @@
 #include "metatileselector.h"
 #include <QGraphicsPixmapItem>
 
-class CurrentSelectedMetatilesPixmapItem : public QObject, public QGraphicsPixmapItem {
-    Q_OBJECT
+class CurrentSelectedMetatilesPixmapItem : public QGraphicsPixmapItem {
 public:
     CurrentSelectedMetatilesPixmapItem(Map *map, MetatileSelector *metatileSelector) {
         this->map = map;

src/config.cpp

@@ -575,7 +575,7 @@ void ProjectConfig::onNewConfigFileCreated() {
         form.addRow(new QLabel("Game Version"), baseGameVersionComboBox);
 
         QDialogButtonBox buttonBox(QDialogButtonBox::Ok, Qt::Horizontal, &dialog);
-        connect(&buttonBox, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);
+        QObject::connect(&buttonBox, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);
         form.addRow(&buttonBox);
 
         if (dialog.exec() == QDialog::Accepted) {